The Federal Bureau of Investigation (FBI) is the domestic
intelligence
Intelligence has been defined in many ways: the capacity for abstraction, logic, understanding, self-awareness, learning, emotional knowledge, reasoning, planning, creativity, critical thinking, and problem-solving. It can be described as t ...
and
security service of the
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
and
its principal federal law enforcement agency. An agency of the
United States Department of Justice
The United States Department of Justice (DOJ), also known as the Justice Department, is a United States federal executive departments, federal executive department of the U.S. government that oversees the domestic enforcement of Law of the Unite ...
, the FBI is a member of the
U.S. Intelligence Community and reports to both the
attorney general
In most common law jurisdictions, the attorney general (: attorneys general) or attorney-general (AG or Atty.-Gen) is the main legal advisor to the government. In some jurisdictions, attorneys general also have executive responsibility for law enf ...
and the
director of national intelligence
The director of national intelligence (DNI) is a Cabinet of the United States#Current Cabinet and Cabinet-rank officials, cabinet-level Federal government of the United States, United States government intelligence and security official. The p ...
.
A leading American
counterterrorism
Counterterrorism (alternatively spelled: counter-terrorism), also known as anti-terrorism, relates to the practices, military tactics, techniques, and strategies that governments, law enforcement, businesses, and Intelligence agency, intelligence ...
,
counterintelligence
Counterintelligence (counter-intelligence) or counterespionage (counter-espionage) is any activity aimed at protecting an agency's Intelligence agency, intelligence program from an opposition's intelligence service. It includes gathering informati ...
, and criminal investigative organization, the FBI has
jurisdiction
Jurisdiction (from Latin 'law' and 'speech' or 'declaration') is the legal term for the legal authority granted to a legal entity to enact justice. In federations like the United States, the concept of jurisdiction applies at multiple level ...
over violations of more than 200 categories of
federal crimes.
Although many of the FBI's functions are unique, its activities in support of
national security
National security, or national defence (national defense in American English), is the security and Defence (military), defence of a sovereign state, including its Citizenship, citizens, economy, and institutions, which is regarded as a duty of ...
are comparable to those of the British
MI5 and
NCA, the New Zealand
GCSB and the Russian
FSB. Unlike the
Central Intelligence Agency
The Central Intelligence Agency (CIA; ) is a civilian foreign intelligence service of the federal government of the United States tasked with advancing national security through collecting and analyzing intelligence from around the world and ...
(CIA), which has no law enforcement authority and is focused on intelligence collection abroad, the FBI is primarily a domestic agency, maintaining 56
field offices in major cities throughout the United States, and more than 400 resident agencies in smaller cities and areas across the nation. At an FBI field office, a senior-level FBI officer concurrently serves as the representative of the director of national intelligence.
Despite its domestic focus, the FBI also maintains a significant international footprint, operating 60 Legal Attache (LEGAT) offices and 15 sub-offices in
U.S. embassies and consulates across the globe. These foreign offices exist primarily for the purpose of coordination with foreign security services and do not usually conduct unilateral operations in the host countries. The FBI can and does at times carry out secret activities overseas, just as the CIA has a
limited domestic function. These activities generally require coordination across government agencies.
The FBI was established in 1908 as the Bureau of Investigation, the BOI or BI for short. Its name was changed to the Federal Bureau of Investigation (FBI) in 1935. The FBI headquarters is the
J. Edgar Hoover Building in
Washington, D.C. The FBI has a
list of the top 10 most wanted fugitives.
Mission, priorities and budget
Mission
The mission of the FBI is to "protect the American people and uphold the
Constitution of the United States
The Constitution of the United States is the Supremacy Clause, supreme law of the United States, United States of America. It superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789. Originally includi ...
".
Priorities
Currently, the FBI's top priorities are:
*Protect the United States from
terrorist attacks
*Protect the United States against foreign intelligence operations, espionage, and cyber operations
*Combat significant cybercriminal activity
*Combat public
corruption
Corruption is a form of dishonesty or a criminal offense that is undertaken by a person or an organization that is entrusted in a position of authority to acquire illicit benefits or abuse power for one's gain. Corruption may involve activities ...
at all levels
*Protect
civil rights
Civil and political rights are a class of rights that protect individuals' political freedom, freedom from infringement by governments, social organizations, and private individuals. They ensure one's entitlement to participate in the civil and ...
*Combat transnational criminal enterprises
*Combat major
white-collar crime
The term "white-collar crime" refers to financially motivated, nonviolent or non-directly violent crime committed by individuals, businesses and government professionals. The crimes are believed to be committed by middle- or upper-class indivi ...
*Combat significant
violent crime
A violent crime, violent felony, crime of violence or crime of a violent nature is a crime in which an offender or perpetrator uses or threatens to use harmful Force (law), force upon a victim. This entails both crimes in which the violence, vio ...
Budget
In the fiscal year 2019, the Bureau's total budget was approximately $9.6 billion.
In the Authorization and Budget Request to Congress for fiscal year 2021, the FBI asked for $9,800,724,000. Of that money, $9,748,829,000 would be used for Salaries and Expenses (S&E) and $51,895,000 for Construction.
The S&E program saw an increase of $199,673,000.
History
Background
In 1896, the
National Bureau of Criminal Identification was founded, providing agencies across the country with information to identify known criminals. The
1901 assassination of President
William McKinley
William McKinley (January 29, 1843September 14, 1901) was the 25th president of the United States, serving from 1897 until Assassination of William McKinley, his assassination in 1901. A member of the Republican Party (United States), Repub ...
created a perception that the United States was under threat from
anarchists. The
Departments of Justice and
Labor had been keeping records on anarchists for years, but President
Theodore Roosevelt
Theodore Roosevelt Jr. (October 27, 1858 – January 6, 1919), also known as Teddy or T.R., was the 26th president of the United States, serving from 1901 to 1909. Roosevelt previously was involved in New York (state), New York politics, incl ...
wanted more power to monitor them.
The Justice Department had been tasked with
the regulation of interstate commerce since 1887, though it lacked the staff to do so. It had made little effort to relieve its staff shortage until the
Oregon land fraud scandal at the turn of the 20th century. President Roosevelt instructed Attorney General
Charles Bonaparte to organize an autonomous investigative service that would report only to the
Attorney General
In most common law jurisdictions, the attorney general (: attorneys general) or attorney-general (AG or Atty.-Gen) is the main legal advisor to the government. In some jurisdictions, attorneys general also have executive responsibility for law enf ...
.
Bonaparte contacted other agencies, including the
U.S. Secret Service, for personnel, investigators in particular. On May 27, 1908, Congress forbade this use of Treasury employees by the Justice Department, citing fears that the new agency would serve as a
secret police
image:Putin-Stasi-Ausweis.png, 300px, Vladimir Putin's secret police identity card, issued by the East German Stasi while he was working as a Soviet KGB liaison officer from 1985 to 1989. Both organizations used similar forms of repression.
Secre ...
department.
Again at Roosevelt's urging, Bonaparte moved to organize a formal Bureau of Investigation, which would then have its own staff of
special agents
In the United States, a special agent is an official title used to refer to certain detective, investigators or detectives of federal, military, tribal, or state agencies who primarily serve in criminal investigation, criminal investigatory posi ...
.
Creation of BOI
The Bureau of Investigation (BOI) was created on July 26, 1908. Attorney General Bonaparte, using Department of Justice expense funds,
hired thirty-four people, including some veterans of the Secret Service,
to work for a new investigative agency. Its first "chief" (the title is now "director") was
Stanley Finch. Bonaparte notified the Congress of these actions in December 1908.
The bureau's first official task was visiting and making surveys of the houses of prostitution in preparation for enforcing the "White Slave Traffic Act" or
Mann Act, passed on June 25, 1910. In 1932, the bureau was renamed the United States Bureau of Investigation.
Creation of FBI
The following year, 1933, the BOI was linked to the
Bureau of Prohibition and rechristened the Division of Investigation (DOI); it became an independent service within the Department of Justice in 1935.
In the same year, its name was officially changed from the Division of Investigation to the Federal Bureau of Investigation (FBI).
J. Edgar Hoover as FBI director
J. Edgar Hoover served as FBI director from 1924 to 1972, a combined 48 years with the BOI, DOI, and FBI. He was chiefly responsible for creating the Scientific Crime Detection Laboratory, or the
FBI Laboratory, which officially opened in 1932, as part of his work to professionalize investigations by the government. Hoover was substantially involved in most major cases and projects that the FBI handled during his tenure. But as detailed below, his tenure as Bureau director proved to be highly controversial, especially in its later years. After Hoover's death, Congress passed legislation that limited the tenure of future FBI directors to ten years.
Early homicide investigations of the new agency included the
Osage Indian murders. During the "War on Crime" of the 1930s, FBI agents apprehended or killed a number of notorious criminals who committed kidnappings, bank robberies, and murders throughout the nation, including
John Dillinger,
"Baby Face" Nelson,
Kate "Ma" Barker,
Alvin "Creepy" Karpis, and
George "Machine Gun" Kelly.
Other activities of its early decades focused on the scope and influence of the
white supremacist group
Ku Klux Klan
The Ku Klux Klan (), commonly shortened to KKK or Klan, is an American Protestant-led Christian terrorism, Christian extremist, white supremacist, Right-wing terrorism, far-right hate group. It was founded in 1865 during Reconstruction era, ...
, a group with which the FBI was evidenced to be working in the
Viola Liuzzo lynching case. Earlier, through the work of
Edwin Atherton, the BOI claimed to have successfully apprehended an entire army of Mexican neo-revolutionaries under the leadership of General
Enrique Estrada in the mid-1920s, east of San Diego, California.
Hoover began using
wiretapping in the 1920s during
Prohibition
Prohibition is the act or practice of forbidding something by law; more particularly the term refers to the banning of the manufacture, storage (whether in barrels or in bottles), transportation, sale, possession, and consumption of alcoholic b ...
to arrest bootleggers.
In the 1927 case ''
Olmstead v. United States'', in which a bootlegger was caught through telephone tapping, the
United States Supreme Court
The Supreme Court of the United States (SCOTUS) is the highest court in the federal judiciary of the United States. It has ultimate appellate jurisdiction over all U.S. federal court cases, and over state court cases that turn on question ...
ruled that FBI wiretaps did not violate the
Fourth Amendment as unlawful search and seizure, as long as the FBI did not break into a person's home to complete the tapping.
After Prohibition's repeal,
Congress
A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of ...
passed the
Communications Act of 1934, which outlawed non-consensual phone tapping, but did allow bugging.
In the 1939 case ''Nardone v. United States'', the court ruled that due to the 1934 law, evidence the FBI obtained by phone tapping was inadmissible in court.
After ''
Katz v. United States'' (1967) overturned ''Olmstead'', Congress passed the
Omnibus Crime Control Act, allowing public authorities to tap telephones during investigations, as long as they obtained warrants beforehand.
National security
Beginning in the 1940s and continuing into the 1970s, the bureau investigated cases of
espionage
Espionage, spying, or intelligence gathering, as a subfield of the intelligence field, is the act of obtaining secret or confidential information ( intelligence). A person who commits espionage on a mission-specific contract is called an ...
against the United States and its allies. Eight
Nazi
Nazism (), formally named National Socialism (NS; , ), is the far-right politics, far-right Totalitarianism, totalitarian socio-political ideology and practices associated with Adolf Hitler and the Nazi Party (NSDAP) in Germany. During H ...
agents who had planned
sabotage
Sabotage is a deliberate action aimed at weakening a polity, government, effort, or organization through subversion, obstruction, demoralization (warfare), demoralization, destabilization, divide and rule, division, social disruption, disrupti ...
operations against American targets were arrested, and six were executed (''
Ex parte Quirin'') under their sentences. Also during this time, a joint US/UK code-breaking effort called "The
Venona Project"—with which the FBI was heavily involved—broke Soviet diplomatic and intelligence communications codes, allowing the US and British governments to read Soviet communications. This effort confirmed the existence of Americans working in the United States for Soviet intelligence.
Hoover was administering this project, but he failed to notify the
Central Intelligence Agency
The Central Intelligence Agency (CIA; ) is a civilian foreign intelligence service of the federal government of the United States tasked with advancing national security through collecting and analyzing intelligence from around the world and ...
(CIA) of it until 1952. Another notable case was the arrest of Soviet spy
Rudolf Abel in 1957. The discovery of Soviet spies operating in the US motivated Hoover to pursue his longstanding concern with the threat he perceived from the
American Left.
Japanese American internment
In 1939, the Bureau began compiling a
custodial detention list with the names of those who would be taken into custody in the event of war with Axis nations. The majority of the names on the list belonged to
Issei community leaders, as the FBI investigation built on an existing
Naval Intelligence index that had focused on
Japanese American
are Americans of Japanese ancestry. Japanese Americans were among the three largest Asian Americans, Asian American ethnic communities during the 20th century; but, according to the 2000 United States census, 2000 census, they have declined in ...
s in Hawaii and the West Coast, but many
German and
Italian nationals also found their way onto the
FBI Index list. Robert Shivers, head of the Honolulu office, obtained permission from Hoover to start detaining those on the list on December 7, 1941, while bombs were still falling over
Pearl Harbor
Pearl Harbor is an American lagoon harbor on the island of Oahu, Hawaii, west of Honolulu. It was often visited by the naval fleet of the United States, before it was acquired from the Hawaiian Kingdom by the U.S. with the signing of the Reci ...
.
Mass arrests and searches of homes, in most cases conducted without warrants, began a few hours after the attack, and over the next several weeks more than 5,500 Issei men were taken into FBI custody.
On February 19, 1942, President
Franklin Roosevelt
Franklin Delano Roosevelt (January 30, 1882April 12, 1945), also known as FDR, was the 32nd president of the United States, serving from 1933 until his death in 1945. He is the longest-serving U.S. president, and the only one to have served ...
issued
Executive Order 9066
Executive Order 9066 was a President of the United States, United States presidential executive order signed and issued during World War II by United States president Franklin D. Roosevelt on February 19, 1942. "This order authorized the fo ...
, authorizing the removal of Japanese Americans from the West Coast. FBI Director Hoover opposed the subsequent mass removal and confinement of Japanese Americans authorized under Executive Order 9066, but Roosevelt prevailed. The vast majority went along with the subsequent exclusion orders, but in a handful of cases where Japanese Americans refused to obey the new military regulations, FBI agents handled their arrests.
The Bureau continued surveillance on Japanese Americans throughout the war, conducting background checks on applicants for resettlement outside camp, and entering the camps, usually without the permission of
War Relocation Authority
The War Relocation Authority (WRA) was a United States government agency established to handle the internment of Japanese Americans during World War II. It also operated the Fort Ontario Emergency Refugee Shelter in Oswego, New York, which was t ...
officials, and grooming informants to monitor dissidents and "troublemakers". After the war, the FBI was assigned to protect returning Japanese Americans from attacks by hostile white communities.
Sex deviates program
According to Douglas M. Charles, the FBI's "sex deviates" program began on April 10, 1950, when J. Edgar Hoover forwarded to the White House, to the U.S. Civil Service Commission, and to branches of the armed services a list of 393 alleged federal employees who had allegedly been arrested in Washington, D.C., since 1947, on charges of "sexual irregularities". On June 20, 1951, Hoover expanded the program by issuing a memo establishing a "uniform policy for the handling of the increasing number of reports and allegations concerning present and past employees of the United States Government who assertedly
icare sex deviates". The program was expanded to include non-government jobs. According to
Athan Theoharis, "In 1951 he
ooverhad unilaterally instituted a Sex Deviates program to purge alleged homosexuals from any position in the federal government, from the lowliest clerk to the more powerful position of White house aide." On May 27, 1953,
Executive Order 10450 went into effect. The program was expanded further by this executive order by making all federal employment of homosexuals illegal. On July 8, 1953, the FBI forwarded to the U.S. Civil Service Commission information from the sex deviates program. Between 1977 and 1978, 300,000 pages in the sex deviates program, collected between 1930 and the mid-1970s, were destroyed by FBI officials.
Civil rights movement
During the 1950s and 1960s, FBI officials became increasingly concerned about the influence of civil rights leaders, whom they believed either had communist ties or were unduly influenced by communists or "
fellow travelers". In 1956, for example, Hoover sent an open letter denouncing Dr.
T. R. M. Howard, a civil rights leader, surgeon, and wealthy entrepreneur in Mississippi who had criticized FBI inaction in solving recent murders of
George W. Lee,
Emmett Till
Emmett Louis Till (July 25, 1941 – August 28, 1955) was an African American youth, who was 14 years old when he was abducted and Lynching in the United States, lynched in Mississippi in 1955 after being accused of offending a white woman, ...
, and other blacks in the South. The FBI carried out controversial
domestic surveillance in an operation it called the
COINTELPRO
COINTELPRO (a syllabic abbreviation derived from Counter Intelligence Program) was a series of covert and illegal projects conducted between 1956 and 1971 by the United States Federal Bureau of Investigation (FBI) aimed at surveilling, infiltr ...
, from "COunter-INTELligence PROgram".
It was to investigate and disrupt the activities of dissident political organizations within the United States, including both militant and non-violent organizations. Among its targets was the
Southern Christian Leadership Conference
The Southern Christian Leadership Conference (SCLC) is an African Americans, African-American civil rights organization based in Atlanta, Georgia (U.S. state), Georgia. SCLC is closely associated with its first president, Martin Luther King Jr., ...
, a leading civil rights organization whose clergy leadership included the Rev. Dr.
Martin Luther King Jr.
Martin Luther King Jr. (born Michael King Jr.; January 15, 1929 – April 4, 1968) was an American Baptist minister, civil and political rights, civil rights activist and political philosopher who was a leader of the civil rights move ...
.

The FBI frequently investigated King. In the mid-1960s, King began to criticize the Bureau for giving insufficient attention to the use of terrorism by white supremacists. Hoover responded by publicly calling King the most "notorious liar" in the United States. In his 1991 memoir, ''
Washington Post
''The Washington Post'', locally known as ''The'' ''Post'' and, informally, ''WaPo'' or ''WP'', is an American daily newspaper published in Washington, D.C., the national capital. It is the most widely circulated newspaper in the Washington m ...
'' journalist
Carl Rowan asserted that the FBI had sent at least one anonymous letter to King encouraging him to commit suicide.
Historian
Taylor Branch
Taylor Branch (born January 14, 1947) is an American author and historian who wrote a Pulitzer Prize winning trilogy chronicling the life of Martin Luther King Jr. and much of the history of the American civil rights movement. The final volume o ...
documents an anonymous November 1964 "suicide package" sent by the Bureau that combined a letter to the civil rights leader telling him "You are done. There is only one way out for you." with audio recordings of King's sexual indiscretions.
In March 1971, the residential office of an FBI agent in
Media, Pennsylvania
Media is a borough (Pennsylvania), borough in and the county seat of Delaware County, Pennsylvania, United States. It is located about west of Philadelphia. It is part of the Delaware Valley, also known as the Philadelphia metropolitan area.
...
, was burgled by a group calling itself the
Citizens' Commission to Investigate the FBI. Numerous files were taken and distributed to a range of newspapers, including ''
The Harvard Crimson
''The Harvard Crimson'' is the student newspaper at Harvard University, an Ivy League university in Cambridge, Massachusetts, United States. The newspaper was founded in 1873, and is run entirely by Harvard College undergraduate students.
His ...
''.
The files detailed the FBI's extensive
COINTELPRO
COINTELPRO (a syllabic abbreviation derived from Counter Intelligence Program) was a series of covert and illegal projects conducted between 1956 and 1971 by the United States Federal Bureau of Investigation (FBI) aimed at surveilling, infiltr ...
program, which included investigations into lives of ordinary citizens—including a black student group at a Pennsylvania military college and the daughter of Congressman
Henry S. Reuss of
Wisconsin
Wisconsin ( ) is a U.S. state, state in the Great Lakes region, Great Lakes region of the Upper Midwest of the United States. It borders Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michig ...
.
The country was "jolted" by the revelations, which included assassinations of political activists, and the actions were denounced by members of the Congress, including House Majority Leader
Hale Boggs.
The phones of some members of the Congress, including Boggs, had allegedly been tapped.
Kennedy's assassination
When President
John F. Kennedy
John Fitzgerald Kennedy (May 29, 1917 – November 22, 1963), also known as JFK, was the 35th president of the United States, serving from 1961 until his assassination in 1963. He was the first Roman Catholic and youngest person elected p ...
was shot and killed, the jurisdiction fell to the local police departments until President
Lyndon B. Johnson
Lyndon Baines Johnson (; August 27, 1908January 22, 1973), also known as LBJ, was the 36th president of the United States, serving from 1963 to 1969. He became president after the assassination of John F. Kennedy, under whom he had served a ...
directed the FBI to take over the investigation.
To ensure clarity about the responsibility for investigation of homicides of federal officials, Congress passed a law in 1965 that included investigations of such deaths of federal officials, especially by homicide, within FBI jurisdiction.
Organized crime

In response to organized crime, on August 25, 1953, the FBI created the Top Hoodlum Program. The national office directed field offices to gather information on
mobsters in their territories and to report it regularly to Washington for a centralized collection of intelligence on
racketeers. After the
Racketeer Influenced and Corrupt Organizations Act
The Racketeer Influenced and Corrupt Organizations (RICO) Act is a United States federal law that provides for extended criminal penalties and a civil cause of action for acts performed as part of an ongoing criminal organization.
RICO was e ...
, for RICO Act, took effect, the FBI began investigating the former Prohibition-organized groups, which had become fronts for crime in major cities and small towns. All the FBI work was done undercover and from within these organizations, using the provisions provided in the RICO Act. Gradually the agency dismantled many of the groups. Although Hoover initially denied the existence of a
National Crime Syndicate
The National Crime Syndicate was a multi-ethnic, closely connected, American confederation of several criminal organizations. It mostly consisted of and was led by the closely interconnected Italian American Mafia and Jewish Mob. It also involv ...
in the United States, the Bureau later conducted operations against known organized crime syndicates and families, including those headed by
Sam Giancana and
John Gotti
John Joseph Gotti Jr.Capeci, Mustain (1996), pp. 25–26 ( , ; October 27, 1940 – June 10, 2002) was an American '' mafioso'' and boss of the Gambino crime family in New York City. He ordered and helped to orchestrate the murder of Gambin ...
. The RICO Act is still used today for all
organized crime
Organized crime is a category of transnational organized crime, transnational, national, or local group of centralized enterprises run to engage in illegal activity, most commonly for profit. While organized crime is generally thought of as a f ...
and any individuals who may fall under the Act's provisions.
In 2003, a congressional committee called the FBI's organized crime
informant
An informant (also called an informer or, as a slang term, a "snitch", "rat", "canary", "stool pigeon", "stoolie", "tout" or "grass", among other terms) is a person who provides privileged information, or (usually damaging) information inten ...
program "one of the greatest failures in the history of federal law enforcement".
The FBI allowed four innocent men to be convicted of the
March 1965 gangland murder of Edward "Teddy" Deegan in order to protect
Vincent Flemmi, an FBI informant. Three of the men were sentenced to death (which was later reduced to life in prison), and the fourth defendant was sentenced to life in prison.
Two of the four men died in prison after serving almost 30 years, and two others were released after serving 32 and 36 years. In July 2007, U.S. District Judge
Nancy Gertner in Boston found that the Bureau had helped convict the four men using false witness accounts given by mobster
Joseph Barboza. The U.S. Government was ordered to pay $100 million in damages to the four defendants.
Special FBI teams

In 1982, the FBI formed an elite unit
to help with problems that might arise at the
1984 Summer Olympics
The 1984 Summer Olympics (officially the Games of the XXIII Olympiad and commonly known as Los Angeles 1984) were an international multi-sport event held from July 28 to August 12, 1984, in Los Angeles, California, United States. It marked the ...
to be held in Los Angeles, particularly
terrorism
Terrorism, in its broadest sense, is the use of violence against non-combatants to achieve political or ideological aims. The term is used in this regard primarily to refer to intentional violence during peacetime or in the context of war aga ...
and major-crime. This was a result of the
1972 Summer Olympics
The 1972 Summer Olympics (), officially known as the Games of the XX Olympiad () and officially branded as Munich 1972 (; ), were an international multi-sport event held in Munich, West Germany, from 26 August to 11 September 1972. It was the ...
in
Munich, Germany
Munich is the capital and most populous city of Bavaria, Germany. As of 30 November 2024, its population was 1,604,384, making it the third-largest city in Germany after Berlin and Hamburg. Munich is the largest city in Germany that is no ...
, when
terrorists murdered the Israeli athletes. Named the
Hostage Rescue Team, or HRT, it acts as a dedicated FBI
SWAT
A SWAT (''Special Weapons and Tactics'') team is a generic term for a police tactical unit within the United States, though the term has also been used by other nations.
SWAT units are generally trained, equipped, and deployed to res ...
team dealing primarily with counter-terrorism scenarios. Unlike the special agents serving on local
FBI SWAT teams, HRT does not conduct investigations. Instead, HRT focuses solely on additional tactical proficiency and capabilities. Also formed in 1984 was the ''Computer Analysis and Response Team'', or CART.
From the late 1980s to the early 1990s, the FBI reassigned more than 300 agents from foreign counter-intelligence duties to violent crime, and made violent crime the sixth national priority. With cuts to other well-established departments, and because terrorism was no longer considered a threat after the end of the
Cold War
The Cold War was a period of global Geopolitics, geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc, which lasted from 1947 unt ...
,
the FBI assisted local and state police forces in tracking fugitives who had crossed state lines, which is a federal offense. The FBI Laboratory helped develop
DNA
Deoxyribonucleic acid (; DNA) is a polymer composed of two polynucleotide chains that coil around each other to form a double helix. The polymer carries genetic instructions for the development, functioning, growth and reproduction of al ...
testing, continuing its pioneering role in identification that began with its fingerprinting system in 1924.
Notable efforts in the 1990s

On May 1, 1992, FBI SWAT and HRT personnel in
Los Angeles County, California
Los Angeles County, officially the County of Los Angeles and sometimes abbreviated as LA County, is the List of United States counties and county equivalents, most populous county in the United States, with 9,663,345 residents estimated in 202 ...
aided local officials in securing peace within the area during the
1992 Los Angeles riots
The 1992 Los Angeles riots were a series of riots and civil disturbances that occurred in Los Angeles County, California, United States, during April and May 1992. Unrest began in South Los Angeles, South Central Los Angeles on April 29, after ...
. HRT operators, for instance, spent 10 days conducting vehicle-mounted patrols throughout
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
, before returning to Virginia.
Between 1993 and 1996, the FBI increased its
counter-terrorism
Counterterrorism (alternatively spelled: counter-terrorism), also known as anti-terrorism, relates to the practices, military tactics, techniques, and strategies that governments, law enforcement, businesses, and intelligence agencies use to co ...
role following the first
1993 World Trade Center bombing
The 1993 World Trade Center bombing was a terrorist attack carried out by Ramzi Yousef and associates against the United States on February 26, 1993, when a van bomb detonated below the North Tower of the World Trade Center complex in Manhat ...
in
New York City
New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
, the 1995
Oklahoma City bombing
The Oklahoma City bombing was a domestic terrorist truck bombing of the Alfred P. Murrah Federal Building in Oklahoma City, United States, on April 19, 1995. The bombing remains the deadliest act of domestic terrorism in U.S. history. Perpetr ...
, and the arrest of the
Unabomber in 1996. Technological innovation and the skills of FBI Laboratory analysts helped ensure that the three cases were successfully prosecuted.
However, Justice Department investigations into the FBI's roles in the
Ruby Ridge and
Waco incidents were found to have been obstructed by agents within the Bureau. During the
1996 Summer Olympics
The 1996 Summer Olympics (officially the Games of the XXVI Olympiad, also known as Atlanta 1996 and commonly referred to as the Centennial Olympic Games) were an international multi-sport event held from July 19 to August 4, 1996, in Atlanta, ...
in
Atlanta, Georgia
Atlanta ( ) is the List of capitals in the United States, capital and List of municipalities in Georgia (U.S. state), most populous city in the U.S. state of Georgia (U.S. state), Georgia. It is the county seat, seat of Fulton County, Georg ...
, the FBI was criticized for its investigation of the
Centennial Olympic Park bombing
The Centennial Olympic Park bombing was a pipe bombing attack on Centennial Olympic Park in Atlanta, Georgia, United States, on July 27, 1996, during the Summer Olympics. The blast directly killed one person and injured 111 others; another pers ...
. It has settled a dispute with
Richard Jewell, who was a private security guard at the venue, along with some media organizations,
in regard to the leaking of his name during the investigation; this had briefly led to his being wrongly suspected of the bombing.
After Congress passed the
Communications Assistance for Law Enforcement Act (CALEA, 1994), the
Health Insurance Portability and Accountability Act
The Health Insurance Portability and Accountability Act of 1996 (HIPAA or the Ted Kennedy, Kennedy–Nancy Kassebaum, Kassebaum Act) is a United States Act of Congress enacted by the 104th United States Congress and signed into law by President ...
(HIPAA, 1996), and the
Economic Espionage Act (EEA, 1996), the FBI followed suit and underwent a technological upgrade in 1998, just as it did with its CART team in 1991. Computer Investigations and Infrastructure Threat Assessment Center (CITAC) and the National Infrastructure Protection Center (NIPC) were created to deal with the increase in
Internet
The Internet (or internet) is the Global network, global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a internetworking, network of networks ...
-related problems, such as computer viruses, worms, and other malicious programs that threatened U.S. operations. With these developments, the FBI increased its electronic surveillance in public safety and national security investigations, adapting to the telecommunications advancements that changed the nature of such problems.
In response to the
1998 U.S. embassy bombings in Kenya and Tanzania, the FBI developed its ''Strategic Plan 1998–2003'' to prioritize counterterrorism and national security. This plan introduced a three-tiered system to classify and prioritize investigative programs agency-wide. Tier one, the highest priority, included national security programs such as counterterrorism and counterintelligence; tier two encompassed major criminal investigations, such as organized crime and white-collar crime, while tier three covered lower-priority matters, including "the most significant" crimes against property and individuals.
The September 11, 2001, attacks accelerated the FBI’s implementation of the tier system, leading to a significant reallocation of resources toward Tier 1 programs. A 2003 audit by the Department of Justice
Office of the Inspector General
In the United States, Office of Inspector General (OIG) is a generic term for the oversight division of a List of federal agencies in the United States, federal or state agency aimed at preventing inefficient or unlawful operations within their p ...
(OIG) reported that the average number of agents assigned to terrorism-related investigations more than doubledfrom 2,126 in
FY 2000 to 4,680 by FY 2002largely due to the expansion of the Counterterrorism Division’s Joint Terrorism Task Forces and related initiatives.
September 11 attacks

During the
September 11, 2001, attacks
The September 11 attacks, also known as 9/11, were four coordinated Islamist terrorist suicide attacks by al-Qaeda against the United States in 2001. Hijackers in the September 11 attacks#Hijackers, Nineteen terrorists hijacked four com ...
on the
World Trade Center, FBI agent
Leonard W. Hatton Jr. was killed during the rescue effort while helping the rescue personnel evacuate the occupants of the South Tower, and he stayed when it collapsed. Within months after the attacks, FBI Director
Robert Mueller
Robert Swan Mueller III (; born August 7, 1944) is an American lawyer who served as the sixth director of the Federal Bureau of Investigation (FBI) from 2001 to 2013.
A graduate of Princeton University and New York University, Mueller served a ...
, who had been sworn in a week before the attacks, called for a re-engineering of FBI structure and operations. He made countering every federal crime a top priority, including the prevention of terrorism, countering foreign intelligence operations, addressing cybersecurity threats, other high-tech crimes, protecting civil rights, combating public corruption, organized crime, white-collar crime, and major acts of violent crime.
In February 2001,
Robert Hanssen was caught selling information to the Russian government. It was later learned that Hanssen, who had reached a high position within the FBI, had been selling intelligence since as early as 1979. He pleaded guilty to
espionage
Espionage, spying, or intelligence gathering, as a subfield of the intelligence field, is the act of obtaining secret or confidential information ( intelligence). A person who commits espionage on a mission-specific contract is called an ...
and received a
life sentence
Life imprisonment is any sentence of imprisonment under which the convicted individual is to remain incarcerated for the rest of their natural life (or until pardoned or commuted to a fixed term). Crimes that result in life imprisonment are c ...
in 2002, but the incident led many to question the security practices employed by the FBI. There was also a claim that Hanssen might have contributed information that led to the September 11, 2001, attacks.
The
9/11 Commission
The National Commission on Terrorist Attacks Upon the United States, commonly known as the 9/11 Commission, was set up on November 27, 2002, to investigate all aspects of the September 11 attacks, the deadliest terrorist attack in world history ...
's final report on July 22, 2004, stated that the FBI and
Central Intelligence Agency
The Central Intelligence Agency (CIA; ) is a civilian foreign intelligence service of the federal government of the United States tasked with advancing national security through collecting and analyzing intelligence from around the world and ...
(CIA) were both partially to blame for not pursuing intelligence reports that could have prevented the September 11 attacks. In its most damning assessment, the report concluded that the country had "not been well served" by either agency and listed numerous recommendations for changes within the FBI.
While the FBI did accede to most of the recommendations, including oversight by the new
director of National Intelligence
The director of national intelligence (DNI) is a Cabinet of the United States#Current Cabinet and Cabinet-rank officials, cabinet-level Federal government of the United States, United States government intelligence and security official. The p ...
, some former members of the 9/11 Commission publicly criticized the FBI in October 2005, claiming it was resisting any meaningful changes.
On July 8, 2007, ''
The Washington Post
''The Washington Post'', locally known as ''The'' ''Post'' and, informally, ''WaPo'' or ''WP'', is an American daily newspaper published in Washington, D.C., the national capital. It is the most widely circulated newspaper in the Washington m ...
'' published excerpts from
UCLA
The University of California, Los Angeles (UCLA) is a public land-grant research university in Los Angeles, California, United States. Its academic roots were established in 1881 as a normal school then known as the southern branch of the C ...
Professor Amy Zegart's book ''Spying Blind: The CIA, the FBI, and the Origins of 9/11''.
The ''Post'' reported, from Zegart's book, that government documents showed that both the CIA and the FBI had missed 23 potential chances to disrupt the terrorist attacks of September 11, 2001. The primary reasons for the failures included: agency cultures resistant to change and new ideas; inappropriate incentives for promotion; and a lack of cooperation between the FBI, CIA, and the rest of the
United States Intelligence Community
The United States Intelligence Community (IC) is a group of separate US federal government, U.S. federal government intelligence agencies and subordinate organizations that work to conduct Intelligence assessment, intelligence activities which ...
. The book blamed the FBI's decentralized structure, which prevented effective communication and cooperation among different FBI offices. The book suggested that the FBI had not evolved into an effective counter-terrorism or counter-intelligence agency, due in large part to deeply ingrained agency cultural resistance to change. For example, FBI personnel practices continued to treat all staff other than special agents as support staff, classifying
intelligence analysts alongside the FBI's auto mechanics and janitors.
Faulty bullet analysis
For over 40 years, the FBI crime lab in Quantico had believed that lead alloys used in bullets had unique chemical signatures. It was analyzing the bullets with the goal of matching them chemically, not only to a single batch of ammunition coming out of a factory, but also to a single box of bullets. The
National Academy of Sciences
The National Academy of Sciences (NAS) is a United States nonprofit, NGO, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the ...
conducted an 18-month independent review of
comparative bullet-lead analysis. In 2003, its National Research Council published a report whose conclusions called into question 30 years of FBI testimony. It found the analytic model used by the FBI for interpreting results was deeply flawed, and the conclusion, that bullet fragments could be matched to a box of ammunition, was so overstated that it was misleading under the rules of evidence. One year later, the FBI decided to stop conducting bullet lead analyses.
After a ''
60 Minutes
''60 Minutes'' is an American television news magazine broadcast on the CBS television network. Debuting in 1968, the program was created by Don Hewitt and Bill Leonard, who distinguished it from other news programs by using a unique style o ...
''/''
The Washington Post
''The Washington Post'', locally known as ''The'' ''Post'' and, informally, ''WaPo'' or ''WP'', is an American daily newspaper published in Washington, D.C., the national capital. It is the most widely circulated newspaper in the Washington m ...
'' investigation in November 2007, two years later, the Bureau agreed to identify, review, and release all pertinent cases, and notify prosecutors about cases in which faulty testimony was given.
Technology
In 2012, the FBI formed the
National Domestic Communications Assistance Center to develop technology for assisting law enforcement with technical knowledge regarding communication services, technologies, and electronic surveillance.
January 6 United States Capitol attack
An FBI informant who participated in the
January 6 United States Capitol attack
On January 6, 2021, the United States Capitol in Washington, D.C., was attacked by a mob of supporters of Donald Trump, President Donald Trump in an attempted self-coup,Multiple sources:
*
*
*
*
*
*
*
*
*
*
*
*
* two months afte ...
on democratic institutions in Washington D.C. later testified in support of the
Proud boys
The Proud Boys is an American far-right politics, far-right, Neo-fascism, neo-fascist militant organization that promotes and engages in political violence.Far-right: * * Fascist: * * * * * Men only: * * * Political violence and militancy: ...
, who were part of the plot. Revelations about the informant raised fresh questions about intelligence failures by the FBI before the riot. According to the
Brennan Center and
United States Senate committees, the FBI's response to white supremacist violence was "woefully inadequate". The FBI has long been suspected to have turned a blind eye towards right-wing extremists while disseminating "conspiracy theories" on the
origin of SARS-CoV-2.
Organization
Organizational structure

The FBI is organized into functional branches and the Office of the Director, which contains most administrative offices. An executive assistant director manages each branch. Each branch is then divided into offices and divisions, each headed by an assistant director. The various divisions are further divided into sub-branches, led by deputy assistant directors. Within these sub-branches, there are various sections headed by section chiefs. Section chiefs are ranked analogous to special agents in charge. Four of the branches report to the deputy director while two report to the associate director.
The main branches of the FBI are:
*
FBI Intelligence Branch
**Executive Assistant Director: Stephen Laycock
*
FBI National Security Branch
**Executive Assistant Director: John Brown
*
FBI Criminal, Cyber, Response, and Services Branch
**Executive Assistant Director: Terry Wade
*
FBI Science and Technology Branch
**Executive Assistant Director: Darrin E. Jones
*
FBI Information and Technology Branch
The Information and Technology Branch (ITB) is a service within the Federal Bureau of Investigation. The ITB is responsible for all FBI information technology needs and information management. ITB also promotes and facilitates the creation, shar ...
**Executive Assistant Director: Michael Gavin (Acting)
*
FBI Human Resources Branch
**Executive Assistant Director: Jeffrey S. Sallet
Each branch focuses on different tasks, and some focus on more than one. Here are some of the tasks that different branches are in charge of:
FBI Headquarters Washington, D.C.
National Security Branch (NSB)
*
Counterintelligence Division (CD)
*
Counterterrorism Division (CTD)
*
Weapons of Mass Destruction Directorate (WMDD)
*
High-Value Detainee Interrogation Group (HIG)
*
Terrorist Screening Center (TSC)
Intelligence Branch (IB)
*
Directorate of Intelligence (DI)
*Office of Partner Engagement (OPE)
*Office of Private Sector
FBI Criminal, Cyber, Response, and Services Branch (CCRSB)
*
Criminal Investigation Division (CID)
**Violent Crime Section (VCS)
**Child Exploitation Operational Unit (CEOU) a joint unit between the FBI and U.S.
Homeland Security Investigations
The United States Immigration and Customs Enforcement (ICE; ) is a Federal law enforcement in the United States, federal law enforcement agency under the United States Department of Homeland Security. ICE's stated mission is to protect the Un ...
(HSI) - Located in Boston Mass.
**Violent Crimes Against Children Section (VCACS)
**Major Case Coordination Unit (MCCU)
*
Cyber Division (CyD)
*
Critical Incident Response Group (CIRG)
*International Operation Division (IOD)
*Victim Services Division
Science and Technology Branch (STB)
*Operational Technology Division (OTD)
*
Laboratory Division (LD)
*
Criminal Justice Information Services (CJIS) Division
Other Headquarter Offices
Information and Technology Branch (ITB)
*IT Enterprise Services Division (ITESD)
*IT Applications and Data Division (ITADD)
*
IT Infrastructure Division (ITID)
*
IT Management Division
*
IT Engineering Division
*
IT Services Division
Human Resources Branch (HRB)
*Training Division (TD)
*Human Resources Division (HRD)
*Security Division (SecD)
Administrative and financial management support
*Facilities and Logistics Services Division (FLSD)
*Finance Division (FD)
*Records Management Division (RMD)
*Resource Planning Office (RPO)
*Inspection Division (InSD)
Office of the Director
The Office of the Director serves as the central administrative organ of the FBI. The office provides staff support functions (such as finance and facilities management) to the five function branches and the various field divisions. The office is managed by the FBI associate director, who also oversees the operations of both the Information and Technology and Human Resources Branches.
Senior staff
*Deputy director
*Associate deputy director
*Chief of staff
Office of the Director
*Finance and Facilities Division
*Information Management Division
*Insider Threat Office
*Inspection Division
*Office of the Chief Information Officer
*Office of Congressional Affairs (OCA)
*Office of Diversity and Inclusion
*Office of Equal Employment Opportunity Affairs (OEEOA)
*Office of the General Counsel (OGC)
*Office of Integrity and Compliance (OIC)
*Office of Internal Auditing
*
Office of the Ombudsman
*Office of Professional Responsibility (OPR)
*Office of Public Affairs (OPA)
*Resource Planning Office
Rank structure
The following is a listing of the rank structure found within the FBI (in ascending order):
*Field agents
**New agent trainee
**
Special agent
In the United States, a special agent is an official title used to refer to certain investigators or detectives of federal, military, tribal, or state agencies who primarily serve in criminal investigatory positions. Additionally, some special ...
**Senior special agent
**Supervisory special agent
**Assistant special agent-in-charge (ASAC)
**Special agent-in-charge (SAC)

*FBI management
**Deputy assistant director
**Assistant director
**Associate executive assistant director (National Security Branch only)
**Executive assistant director
**Deputy chief of staff
**Chief of staff and special counsel to the director
**
Associate deputy director
**
Deputy director
**
Director
Director may refer to:
Literature
* ''Director'' (magazine), a British magazine
* ''The Director'' (novel), a 1971 novel by Henry Denker
* ''The Director'' (play), a 2000 play by Nancy Hasty
Music
* Director (band), an Irish rock band
* ''D ...
Legal authority
The FBI's mandate is established in
Title 28 of the United States Code
Title 28 (Judiciary and Judicial Procedure) is the portion of the United States Code (federal statutory law) that governs the Federal judiciary of the United States, federal judicial system.
It is divided into six parts:
* Part I: Organization ...
(U.S. Code), Section 533, which authorizes the
Attorney General
In most common law jurisdictions, the attorney general (: attorneys general) or attorney-general (AG or Atty.-Gen) is the main legal advisor to the government. In some jurisdictions, attorneys general also have executive responsibility for law enf ...
to "appoint officials to detect and prosecute crimes against the United States".
Other federal statutes give the FBI the authority and responsibility to investigate specific crimes.
The FBI's chief tool against
organized crime
Organized crime is a category of transnational organized crime, transnational, national, or local group of centralized enterprises run to engage in illegal activity, most commonly for profit. While organized crime is generally thought of as a f ...
is the
Racketeer Influenced and Corrupt Organizations (RICO) Act. The FBI is also charged with the responsibility of enforcing compliance of the United States
Civil Rights Act of 1964
The Civil Rights Act of 1964 () is a landmark civil rights and United States labor law, labor law in the United States that outlaws discrimination based on Race (human categorization), race, Person of color, color, religion, sex, and nationa ...
and investigating violations of the act in addition to prosecuting such violations with the
United States Department of Justice
The United States Department of Justice (DOJ), also known as the Justice Department, is a United States federal executive departments, federal executive department of the U.S. government that oversees the domestic enforcement of Law of the Unite ...
(DOJ). The FBI also shares concurrent jurisdiction with the
Drug Enforcement Administration
The Drug Enforcement Administration (DEA) is a Federal law enforcement in the United States, United States federal law enforcement agency under the U.S. Department of Justice tasked with combating illicit Illegal drug trade, drug trafficking a ...
(DEA) in the enforcement of the
Controlled Substances Act
The Controlled Substances Act (CSA) is the statute establishing federal government of the United States, federal drug policy of the United States, U.S. drug policy under which the manufacture, importation, possession, use, and distribution of ...
of 1970.
The
USA PATRIOT Act increased the powers allotted to the FBI, especially in
wiretapping and monitoring of Internet activity. One of the most controversial provisions of the act is the so-called ''
sneak and peek'' provision, granting the FBI powers to search a house while the residents are away, and not requiring them to notify the residents for several weeks afterward. Under the PATRIOT Act's provisions, the FBI also resumed inquiring into the
library
A library is a collection of Book, books, and possibly other Document, materials and Media (communication), media, that is accessible for use by its members and members of allied institutions. Libraries provide physical (hard copies) or electron ...
records
of those who are suspected of
terrorism
Terrorism, in its broadest sense, is the use of violence against non-combatants to achieve political or ideological aims. The term is used in this regard primarily to refer to intentional violence during peacetime or in the context of war aga ...
(something it had supposedly not done since the 1970s).
In the early 1980s, Senate hearings were held to examine FBI undercover operations in the wake of the
Abscam controversy, which had allegations of
entrapment
Entrapment is a practice in which a law enforcement agent or an agent of the state induces a person to commit a crime that the person would have otherwise been unlikely or unwilling to commit.''Sloane'' (1990) 49 A Crim R 270. See also agent prov ...
of elected officials. As a result, in the following years a number of guidelines were issued to constrain FBI activities.
Information obtained through an FBI investigation is presented to the appropriate
U.S. Attorney or Department of Justice official, who decides if prosecution or other action is warranted.
The FBI often works in conjunction with other federal agencies, including the
U.S. Coast Guard (USCG) and
U.S. Customs and Border Protection
United States Customs and Border Protection (CBP) is the largest federal law enforcement agency of the United States Department of Homeland Security. It is the country's primary border control organization, charged with regulating and facilita ...
(CBP) in seaport and airport security,
and the
National Transportation Safety Board
The National Transportation Safety Board (NTSB) is an independent U.S. government investigative agency responsible for civil transportation accident investigation. In this role, the NTSB investigates and reports on aviation accidents and inci ...
in investigating
airplane crashes and other critical incidents.
Immigration and Customs Enforcement
The United States Immigration and Customs Enforcement (ICE; ) is a federal law enforcement agency under the United States Department of Homeland Security. ICE's stated mission is to protect the United States from transnational crime and ille ...
's Homeland Security Investigations (HSI) has nearly the same amount of investigative manpower as the FBI and investigates the largest range of crimes. In the wake of the
September 11 attacks
The September 11 attacks, also known as 9/11, were four coordinated Islamist terrorist suicide attacks by al-Qaeda against the United States in 2001. Nineteen terrorists hijacked four commercial airliners, crashing the first two into ...
, then–Attorney General Ashcroft assigned the FBI as the designated lead organization in terrorism investigations after the creation of the
U.S. Department of Homeland Security
The United States Department of Homeland Security (DHS) is the U.S. federal executive department responsible for public security, roughly comparable to the interior, home, or public security ministries in other countries. Its missions involv ...
. HSI and the FBI are both integral members of the Joint Terrorism Task Force.
Indian reservations
The federal government has the primary responsibility for investigating and prosecuting serious crime on Indian reservations.
The FBI does not specifically list crimes in Native American land as one of its priorities. Often serious crimes have been either poorly investigated or prosecution has been declined. Tribal courts can impose sentences of up to three years, under certain restrictions.
Infrastructure
The FBI is headquartered at the
J. Edgar Hoover Building in
Washington, D.C., with 56 field offices
in major cities across the United States. The FBI also maintains over 400 resident agencies across the United States, as well as over 50 legal attachés at United States Diplomatic mission, embassies and Consul (representative), consulates. Many specialized FBI functions are located at facilities in Quantico, Virginia, as well as a "data campus" in Clarksburg, West Virginia, where 96 million sets of fingerprints "from across the United States are stored, along with others collected by American authorities from prisoners in Saudi Arabia and Yemen, Iraq and Afghanistan".
[Dana Priest, Priest, Dana and William Arkin, Arkin, William (December 2010]
Monitoring America
, ''The Washington Post
''The Washington Post'', locally known as ''The'' ''Post'' and, informally, ''WaPo'' or ''WP'', is an American daily newspaper published in Washington, D.C., the national capital. It is the most widely circulated newspaper in the Washington m ...
'' The FBI is in process of moving its Records Management Division, which processes Freedom of Information Act (United States), Freedom of Information Act (FOIA) requests, to Winchester, Virginia.
According to ''
The Washington Post
''The Washington Post'', locally known as ''The'' ''Post'' and, informally, ''WaPo'' or ''WP'', is an American daily newspaper published in Washington, D.C., the national capital. It is the most widely circulated newspaper in the Washington m ...
'', the FBI "is building a vast repository controlled by people who work in a top-secret vault on the fourth floor of the J. Edgar Hoover Building in Washington, D.C., Washington. This one stores the profiles of tens of thousands of Americans and legal residents who are not accused of any crime. What they have done is appear to be acting suspiciously to a town sheriff, a traffic cop or even a neighbor."
The
FBI Laboratory, established with the formation of the BOI,
did not appear in the J. Edgar Hoover Building until its completion in 1974. The lab serves as the primary lab for most DNA, biological, and physical work. Public tours of FBI headquarters ran through the FBI laboratory workspace before the move to the J. Edgar Hoover Building. The services the lab conducts include ''Chemistry'', ''Combined DNA Index System'' (CODIS), ''Computer Analysis and Response'', ''DNA Analysis'', ''Evidence Response'', ''Explosives'', ''Firearms and Tool marks'', ''Forensic Audio'', ''Forensic Video'', ''Image Analysis'', ''Forensic Science Research'', ''Forensic Science Training'', ''Hazardous Materials Response'', ''Investigative and Prospective Graphics'', ''Latent Prints'', ''Materials Analysis'', ''Questioned Documents'', ''Racketeering Records'', ''Special Photographic Analysis'', ''Structural Design'', and ''Trace Evidence''.
The services of the FBI Laboratory are used by many state, local, and international agencies free of charge. The lab also maintains a second lab at the FBI Academy.
The FBI Academy, located in Quantico, Virginia, is home to the communications and computer laboratory the FBI utilizes. It is also where new agents are sent for training to become FBI special agents. Going through the 21-week course is required for every special agent.
First opened for use in 1972, the facility is located on of woodland. The Academy trains state and local law enforcement agencies, which are invited to the law enforcement training center. The FBI units that reside at Quantico are the ''Field and Police Training Unit'', ''Firearms Training Unit'', ''Forensic Science Research and Training Center'', ''Technology Services Unit'' (TSU), ''Investigative Training Unit'', ''Law Enforcement Communication Unit'', ''Leadership and Management Science Units'' (LSMU), ''Physical Training Unit'', ''New Agents' Training Unit'' (NATU), ''Practical Applications Unit'' (PAU), the ''Investigative Computer Training Unit'' and the "College of Analytical Studies".

In 2000, the FBI began the Trilogy project to upgrade its outdated information technology (IT) infrastructure. This project, originally scheduled to take three years and cost around $380 million, ended up over budget and behind schedule.
Efforts to deploy modern computers and networking equipment were generally successful, but attempts to develop new investigation software, outsourced to Science Applications International Corporation (SAIC), were not. Virtual Case File, or VCF, as the software was known, was plagued by poorly defined goals, and repeated changes in management.
In January 2005, more than two years after the software was originally planned for completion, the FBI abandoned the project. At least $100 million, and much more by some estimates, was spent on the project, which never became operational. The FBI has been forced to continue using its decade-old Automated Case Support system, which information technology, IT experts consider woefully inadequate. In March 2005, the FBI announced it was beginning a new, more ambitious software project, code-named Sentinel, which they expected to complete by 2009.

Carnivore (software), Carnivore was an electronic eavesdropping software system implemented by the FBI during the Clinton administration; it was designed to monitor email and electronic communications. After prolonged negative coverage in the press, the FBI changed the name of its system from "Carnivore" to "DCS1000". DCS is reported to stand for "Digital Collection System"; the system has the same functions as before. The Associated Press reported in mid-January 2005 that the FBI essentially abandoned the use of Carnivore in 2001, in favor of commercially available software, such as NarusInsight.
The FBI Criminal Justice Information Services Division, Criminal Justice Information Services (CJIS) Division
is located in Clarksburg, West Virginia. Organized beginning in 1991, the office opened in 1995 as the youngest agency division. The complex is the length of three football fields. It provides a main repository for information in various data systems. Under the roof of the CJIS are the programs for the ''National Crime Information Center'' (NCIC), ''Uniform Crime Reporting'' (UCR), ''Fingerprint Identification'', ''Integrated Automated Fingerprint Identification System'' (IAFIS), ''NCIC 2000'', and the ''National Incident-Based Reporting System'' (NIBRS). Many state and local agencies use these data systems as a source for their own investigations and contribute to the database using secure communications. FBI provides these tools of sophisticated identification and information services to local, state, federal, and international law enforcement agencies.
The FBI heads the National Virtual Translation Center, which provides "timely and accurate translations of foreign intelligence for all elements of the United States Intelligence Community, Intelligence Community".
In June 2021, the FBI held a groundbreaking for its planned FBI Innovation Center, set to be built in Huntsville, Alabama. The Innovation Center is to be part of a large, college-like campus costing a total of $1.3 billion in Redstone Arsenal and will act as a center for cyber threat intelligence, Analytics, data analytics, and emerging threat training.
Personnel

, the FBI had a total of 33,852 employees. That includes 13,412 special agents and 20,420 support professionals, such as intelligence analysts, language specialists, scientists, information technology specialists, and other professionals.
Line of Duty Deaths
According to the Officer Down Memorial Page 87 FBI agents and 2 K9s have died in the line of duty from 1925 to February 2021.
Hiring process
To apply to become an FBI agent, one must be between the ages of 23 and 37, unless one is a preference-eligible veteran, in which case one may apply after age 37. The applicant must also hold U.S. citizenship, be of high moral character, have a clean record, and hold at least a four-year bachelor's degree. At least three years of professional work experience prior to application is also required. All FBI employees require a Top Secret (TS) security clearance, and in many instances, employees need a TS/SCI (Classified information in the United States#Top Secret, Top Secret/Collateral clearance, Sensitive Compartmented Information) clearance.
To obtain a security clearance, all potential FBI personnel must pass a series of Single Scope Background Investigations (SSBI), which are conducted by the United States Office of Personnel Management, Office of Personnel Management.
Special agent candidates also have to pass a Physical Fitness Test (PFT), which includes a 300-meter run, one-minute sit-ups, maximum push-ups, and a run. Personnel must pass a polygraph test with questions including possible drug use.
Applicants who fail polygraphs may not gain employment with the FBI. Up until 1975, the FBI had a minimum height requirement of .
BOI and FBI directors
Director of the Federal Bureau of Investigation, FBI directors are List of positions filled by presidential appointment with Senate confirmation, appointed (nominated) by the president of the United States and must be confirmed by the United States Senate to serve a term of office of ten years, subject to resignation or removal by the president at his/her discretion before their term ends. Additional terms are allowed following the same procedure.
J. Edgar Hoover, appointed by President Calvin Coolidge in 1924, was by far the longest-serving director, serving until his death in 1972. In 1968, Congress passed legislation, as part of the ''Omnibus Crime Control and Safe Streets Act of 1968'', requiring Senate confirmation of appointments of future directors. As the incumbent, this legislation did not apply to Hoover. The last FBI director was Christopher A. Wray, Christopher Wray. The current FBI director is Kash Patel, appointed by President Donald Trump.
The FBI director is responsible for the day-to-day operations at the FBI. Along with the Deputy Director of the Federal Bureau of Investigation, deputy director, the director makes sure cases and operations are handled correctly. The director also is in charge of making sure the leadership in the FBI
field offices is staffed with qualified agents. Before the Intelligence Reform and Terrorism Prevention Act was passed in the wake of the September 11 attacks, the FBI director would directly brief the president of the United States on any issues that arise from within the FBI. Since then, the director now reports to the
director of national intelligence
The director of national intelligence (DNI) is a Cabinet of the United States#Current Cabinet and Cabinet-rank officials, cabinet-level Federal government of the United States, United States government intelligence and security official. The p ...
(DNI), who in turn reports to the President.
Firearms

Upon qualification, an FBI special agent is issued a full-size Glock 22 or compact Glock 23 semi-automatic pistol, both of which are chambered in the .40 S&W Cartridge (firearms), cartridge. In May 1997, the FBI officially adopted the Glock, in .40 S&W, for general agent use, and first issued it to New Agent Class 98-1 in October 1997. At present, the Glock 23 "FG&R" (finger groove and rail; either 3rd generation or "Gen4") is the issue sidearm.
New agents are issued firearms, on which they must qualify, on successful completion of their training at the FBI Academy. The Glock 26 (subcompact 9 mm Parabellum), Glock 23 and Glock 27 (.40 S&W compact and subcompact, respectively) are authorized as secondary weapons. Special agents are also authorized to purchase and qualify with the Glock 21 in .45 ACP.
Special agents of the FBI
Hostage Rescue Team (HRT) and FBI Special Weapons and Tactics Teams, regional SWAT teams are issued the Springfield Armory, Inc., Springfield Armory M1911 pistol, Professional Model 1911 pistol in .45 ACP.
In June 2016, the FBI awarded Glock Ges.m.b.H., Glock a contract for new handguns. Unlike the currently issued .40 S&W chambered Glock pistols, the new Glocks will be chambered for 9 mm Parabellum. The contract is for the full-size Glock 17M and the compact Glock 19M. The "M" means the Glocks have been modified to meet government standards specified by a 2015 government request for proposal.
Publications

The ''FBI Law Enforcement Bulletin'' is published monthly by the FBI Law Enforcement Communication Unit,
with articles of interest to state and local Law enforcement agency, law enforcement personnel. First published in 1932 as ''Fugitives Wanted by Police'',
the ''FBI Law Bulletin'' covers topics including law enforcement technology and issues, such as crime mapping and use of force, as well as recent criminal justice research, and Violent Criminal Apprehension Program, ViCAP alerts, on wanted suspects and key cases.
The FBI also publishes some reports for both law enforcement personnel as well as regular citizens covering topics including law enforcement,
terrorism
Terrorism, in its broadest sense, is the use of violence against non-combatants to achieve political or ideological aims. The term is used in this regard primarily to refer to intentional violence during peacetime or in the context of war aga ...
, Computer crime, cybercrime,
white-collar crime
The term "white-collar crime" refers to financially motivated, nonviolent or non-directly violent crime committed by individuals, businesses and government professionals. The crimes are believed to be committed by middle- or upper-class indivi ...
, violent crime, and statistics.
The vast majority of Federal government of the United States, federal government publications covering these topics are published by the Office of Justice Programs agencies of the
United States Department of Justice
The United States Department of Justice (DOJ), also known as the Justice Department, is a United States federal executive departments, federal executive department of the U.S. government that oversees the domestic enforcement of Law of the Unite ...
, and disseminated through the National Criminal Justice Reference Service.
Crime statistics
During the 1920s the FBI began issuing crime reports by gathering numbers from local police departments.
Due to limitations of this system that were discovered during the 1960s and 1970s—victims often simply did not report crimes to the police in the first place—the United States Department of Justice, Department of Justice developed an alternative method of tallying crime, the victimization survey.
Uniform Crime Reports
The Uniform Crime Reports (UCR) compile data from over 17,000 law enforcement agencies across the country. They provide detailed data regarding the volume of crimes to include arrest, clearance (or closing a case), and law enforcement officer information. The UCR focuses its data collection on violent crimes, hate crimes, and property crimes.
Created in the 1920s, the UCR system has not proven to be as ''uniform'' as its name implies. The UCR data only reflect the most serious offense in the case of connected crimes and has a very restrictive definition of rape. Since about 93% of the data submitted to the FBI is in this format, the UCR stands out as the publication of choice as most states require law enforcement agencies to submit this data.
Preliminary Annual ''Uniform Crime Report'' for 2006 was released on June 4, 2006. The report shows violent crime offenses rose 1.3%, but the number of property crime offenses decreased 2.9% compared to 2005.
National Incident-Based Reporting System
The National Incident-Based Reporting System (NIBRS) crime statistics system aims to address limitations inherent in UCR data. The system is used by law enforcement agencies in the United States for collecting and reporting data on crimes. Local, state, and federal agencies generate NIBRS data from their records management systems. Data is collected on every incident and arrest in the Group A offense category. The Group A offenses are 46 specific crimes grouped in 22 offense categories. Specific facts about these offenses are gathered and reported in the NIBRS system. In addition to the Group A offenses, eleven Group B offenses are reported with only the arrest information. The NIBRS system is in greater detail than the summary-based UCR system. , 5,271 law enforcement agencies submitted NIBRS data. That amount represents 20% of the United States population and 16% of the crime statistics data collected by the FBI.
eGuardian
eGuardian is the name of an FBI system, launched in January 2009, to share tips about possible terror threats with local police agencies. The program aims to get law enforcement at all levels sharing data quickly about suspicious activity and people.
eGuardian enables near real-time sharing and tracking of terror information and suspicious activities with local, state, tribal, and federal agencies. The eGuardian system is a spin-off of a similar but classified tool called Guardian that has been used inside the FBI, and shared with vetted partners since 2005.
Controversies
Throughout its history, the FBI has been the subject of many controversies, both at home and abroad.
*List of FBI controversies#Files on Puerto Rican independence advocates, Files on Puerto Rican independence advocates – Member of Congress, Congressman Luis Gutiérrez, Luiz Gutierrez revealed that Pedro Albizu Campos and his Puerto Rican Nationalist Party, Nationalist political party had been watched for a decade-long period in the 1930s.
*Whitey Bulger, The Whitey Bulger case – The FBI, specifically the Boston Field Office was, and continues to be, criticized for its handling of Boston criminal Whitey Bulger. As a result of Bulger acting as an
informant
An informant (also called an informer or, as a slang term, a "snitch", "rat", "canary", "stool pigeon", "stoolie", "tout" or "grass", among other terms) is a person who provides privileged information, or (usually damaging) information inten ...
, the agency turned a blind eye to his activities as an exchange.
*Latin America – For decades during the
Cold War
The Cold War was a period of global Geopolitics, geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc, which lasted from 1947 unt ...
, the FBI placed agents to monitor the governments of Caribbean and Latin American nations.
*Surveillance, Domestic surveillance – In 1985, it was found that the FBI had made use of surveillance devices on numerous American citizens between 1940 and 1960.
*
Robert Hanssen – In what is described by the US United States Department of Justice, Department of Justice (DOJ) as "Robert Hanssen, possibly the worst intelligence disaster in U.S. history". Hanssen managed to evade the FBI as he simultaneously sold thousands of classified American documents to Soviet Union, Soviet GRU (Soviet Union), intelligence operatives.
*
Viola Liuzzo – Gary Thomas Rowe, an FBI informant who at the time was also an active member of the
Ku Klux Klan
The Ku Klux Klan (), commonly shortened to KKK or Klan, is an American Protestant-led Christian terrorism, Christian extremist, white supremacist, Right-wing terrorism, far-right hate group. It was founded in 1865 during Reconstruction era, ...
, assisted in the murder of Viola Liuzzo (a civil rights activist) in 1965, and afterwards, Defamation, defamatory rumors were spread by the Bureau about the victim.
*
Ruby Ridge (1992) was a shootout between the FBI and Randy Weaver over his failure to appear for weapons charges.
*Waco siege (1993) was a failed raid by the Bureau of Alcohol, Tobacco, Firearms and Explosives, ATF that resulted in the death of 4 ATF agents and 6 Branch Davidians. The FBI and US military got involved with the 51 day siege that followed. The building ended up burning down killing 76 including 26 children. This is what motivated Timothy McVeigh (along with
Ruby Ridge) to carry out the
Oklahoma City bombing
The Oklahoma City bombing was a domestic terrorist truck bombing of the Alfred P. Murrah Federal Building in Oklahoma City, United States, on April 19, 1995. The bombing remains the deadliest act of domestic terrorism in U.S. history. Perpetr ...
(1995).
*Associated Press#FBI_impersonation_case, Associated Press (AP) impersonation case – A Bureau agent, masquerading as an AP journalist, placed Spyware, surveillance software in the personal computer of a minor. This resulted in a series of conflicts between the news agency and the FBI.
*Stoneman Douglas High School shooting – A statement from the FBI confirmed that it had failed to act on a tip warning of the possibility of the shooting over a month prior to its occurrence, which may have prevented the tragedy outright.
*
1993 World Trade Center bombing
The 1993 World Trade Center bombing was a terrorist attack carried out by Ramzi Yousef and associates against the United States on February 26, 1993, when a van bomb detonated below the North Tower of the World Trade Center complex in Manhat ...
- Emad Salem, an FBI informant and a key witness in the trial of Ramzi Yousef, Abdul Hakim Murad (militant), Abdul Hakim Murad, and Wali Khan Amin Shah, stated that the bomb itself was built under supervision from the FBI.
Specific practices include:
*Internal investigations of shootings – A professor of criminal justice at the University of Nebraska Omaha suggested that FBI internal reports found a questionably high number of Shooting, weapon discharges by its agents to be justified.
*Covert operations on political groups – Political groups deemed disruptive have been investigated and discredited by the FBI in the aim of "protecting
national security
National security, or national defence (national defense in American English), is the security and Defence (military), defence of a sovereign state, including its Citizenship, citizens, economy, and institutions, which is regarded as a duty of ...
, preventing violence, and maintaining the existing Social order, social and Political system, political order".
*FBI surveillance since 2010 – In the years since 2010, it has been uncovered by various civil liberties groups (such as the American Civil Liberties Union, American Civil Liberties Union [ACLU]) that the FBI earmarked disproportionate resources for the surveillance of Left-wing politics, left-leaning movements and political organizations. The FBI has also committed several breaches of the First Amendment to the United States Constitution, First Amendment in this time.
*List of FBI controversies#Files on U.S. citizens, Files on U.S. citizens – The Bureau kept files on certain individuals for varying reasons and lengths of time, notably, FBI files on Elvis Presley, Elvis Presley, Frank Sinatra, John Denver.
*Entrapment - The FBI has been criticized for its use of entrapment, where Agent provocateur, ''agent provocateurs'' attempt to incite individuals into committing illegal acts.
Notable critics of FBI entrapment such as Human Rights Watch and the ACLU note that entrapment cases often target impoverished individuals or those with mental or emotional disabilities and that these cases have an adverse effect on marginalized groups.
Media portrayal
The FBI has been frequently depicted in popular media since the 1930s. The bureau has participated to varying degrees, which has ranged from direct involvement in the creative process of film or TV series development, to providing consultation on operations and closed cases.
A few of the notable portrayals of the FBI on television are the series ''The X-Files'', which started in 1993 and concluded its eleventh season in early 2018, and concerned investigations into paranormal phenomena by five fictional special agents, and the fictional Counter Terrorist Unit (CTU) agency in the TV drama ''24 (TV series), 24'', which is patterned after the FBI Counterterrorism Division.
The 1991 movie ''Point Break (1991 film), Point Break'' depicts an undercover FBI agent who infiltrated a gang of bank robbers. The 1997 movie ''Donnie Brasco (film), Donnie Brasco'' is based on the true story of undercover FBI agent Joseph D. Pistone infiltrating the Mafia. The 2005–2020 television series ''Criminal Minds'', that follows the team members of the FBI's Behavioral Analysis Unit (BAU) in the pursuit of serial killers. The 2017 TV series ''Riverdale (American TV series), Riverdale'' where one of the main characters is an FBI agent. The 2015 TV series ''Quantico (TV series), Quantico'', titled after the location of the Bureau's training facility, deals with probationary and special agents, not all of whom, within the show's format, may be fully reliable or even trustworthy.
The 2018 series ''FBI (TV series), FBI'', set in NYC that follows the personal and professional lives of the agents assigned to 26 Federal Plaza (NYC FBI field office). ''FBI'' first spin-off titled ''FBI: Most Wanted'' (2020), follows the FBI's Fugitive Task Force in chasing down the America's most wanted criminals, and the second spin-off, ''FBI: International'' (2021), follows the FBI's International Fly Team that goes where ever they are needed in the world to protect the American's interests.
Notable FBI personnel
*
Edwin Atherton
*Ed Bethune
*Cassandra Chandler
*James Comey
*John Connolly (FBI), John Connolly
*Alaska P. Davidson
*Sibel Edmonds
*Mark Felt, W. Mark Felt
*James R. Fitzgerald
*
Robert Hanssen
*
J. Edgar Hoover
*Lon Horiuchi
*James Wormley Jones
*John McClurg
*Sylvia E. Mathis
*Richard Miller (agent), Richard Miller
*
Robert Mueller
Robert Swan Mueller III (; born August 7, 1944) is an American lawyer who served as the sixth director of the Federal Bureau of Investigation (FBI) from 2001 to 2013.
A graduate of Princeton University and New York University, Mueller served a ...
*Eric O'Neill
*John P. O'Neill
*M.K. Palmore
*Joseph D. Pistone
*Melvin Purvis
*Coleen Rowley
*Ali Soufan
*Sue Thomas (agent), Sue Thomas
*Clyde Tolson
*Frederic Whitehurst
See also
*Diplomatic Security Service (DSS)
*Law enforcement in the United States
*List of United States state and local law enforcement agencies
*State bureau of investigation
*United States Marshals Service (USMS)
*FBI Honorary Medals
*FBI Victims Identification Project
*History of espionage
*Inspector
*Society of Former Special Agents of the Federal Bureau of Investigation
References
Further reading
*
Church Committee Report(), Vol. 6, "Federal Bureau of Investigation". 1975 congressional inquiry into American intelligence operations.
* Federal Bureau of Investigation
FBI—The Year in Review, Part 1Part 2(2013)
* Graves, Melissa. "FBI Historiography: From Leader to Organisation" in Christopher R. Moran, Christopher J. Murphy, eds. ''Intelligence Studies in Britain and the US: Historiography Since 1945'' (Edinburgh UP, 2013) pp. 129–145. .
* Rhodri Jeffreys-Jones, Jeffreys-Jones, Rhodri. ''The FBI: A History'' (Yale University Press, 2007).
* Jeffreys-Jones, Rhodri. "The Historiography of the FBI", in Loch Johnson, ed., ''A Handbook of Intelligence'' (Routledge, 2006). pp. 39–51.
* Jeffreys-Jones, Rhodri
"Forcing Out Unwanted FBI Directors: A Brief, Messy History"(), ''Vox'', (May 23, 2017).
* Jeffreys-Jones, Rhodri
"A brief history of the FBI's meddling in US politics"(). ''Vox'', (November 5, 2016).
*
* Dave Lindorff, Lindorff, Dave, "Brothers Against the Bureau: Theodore Hall, Ted Hall, the Soviet Union's Youngest Atomic Spy, His Rocket Scientist Brother Edward N. Hall, Ed, and the Untold Story of How
J. Edgar Hoover's biggest Manhattan Project Bust Was Shut Down", ''The Nation'', vol. 314, no. 1 (January 10–17, 2022), pp. 26–31.
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External links
Federal Bureau of Investigationfrom the Federation of American Scientists
The Vault FBI electronic reading room (launched April 2011)
*
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FBI Collectionat Internet Archive, files on over 1,100 subjects
*William H. Thomas, Jr.
Bureau of Investigation in
*[https://www.c-span.org/organization/?4551/Federal-Bureau-Investigation FBI coverage at C-SPAN]
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