Dartmoor (HM Prison)
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HM Prison Dartmoor is a Category C men's prison, located in
Princetown Princetown is a villageDespite its name, Princetown is not classed as a town today – it is not included in the County Council's list of the 29 towns in Devon: located within Dartmoor national park in the English county of Devon. It is the ...
, high on
Dartmoor Dartmoor is an upland area in southern Devon, South West England. The moorland and surrounding land has been protected by National Park status since 1951. Dartmoor National Park covers . The granite that forms the uplands dates from the Carb ...
in the English county of
Devon Devon ( ; historically also known as Devonshire , ) is a ceremonial county in South West England. It is bordered by the Bristol Channel to the north, Somerset and Dorset to the east, the English Channel to the south, and Cornwall to the west ...
. Its high
granite Granite ( ) is a coarse-grained (phanerite, phaneritic) intrusive rock, intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly coo ...
walls dominate this area of the moor. The prison is owned by the Duchy of Cornwall, and is operated by
His Majesty's Prison Service His Majesty's Prison Service (HMPS) is a part of HM Prison and Probation Service (formerly the National Offender Management Service), which is the part of His Majesty's Government charged with managing most of the prisons within England and ...
. The prison closed temporarily in 2024 for radon mitigation and investigation works. Dartmoor Prison was given Grade II heritage listing in 1987.


History


Prisoners of War

In 1805, the United Kingdom was at war with Napoleonic France, a conflict during which thousands of prisoners were taken and confined in prison "hulks" or derelict ships. This was considered a security risk, partially due to the proximity of the Royal Naval dockyard at Devonport (then called Plymouth Dock) and living conditions were appalling in the extreme; consequently, a prisoner of war depot was planned in the remote isolation of Dartmoor. The prison was designed by Daniel Asher Alexander. Construction by local labour started in 1806, taking three years to complete. In 1809, the first French prisoners arrived and the prison was full by the end of the year. From the spring of 1813 until March 1815, about 6,500 American sailors from the
War of 1812 The War of 1812 was fought by the United States and its allies against the United Kingdom of Great Britain and Ireland, United Kingdom and its allies in North America. It began when the United States United States declaration of war on the Uni ...
were imprisoned at Dartmoor in poor conditions (food was bad and the roofs leaked). These were either naval prisoners or impressed American seamen discharged from British vessels. Whilst the British were in overall charge of the prison, the prisoners created their own governance and culture. They had courts which meted out punishments, a market, a theatre and a gambling room. About 1,000 of the prisoners were Black. A recent examination of the General Entry Book of American Prisoners of War at Dartmoor, by Nicholas Guyatt, found "Eight Hundred and Twenty - Nine Sailors of Colour had been entered into the register by the end of October 1814."


Escapes

Unlike many detention facilities of the period, Dartmoor Prison was purpose built in an isolated location, ringed by high stone walls, and manned by hundreds of armed militia sentries. In addition a rope ran around the entire circumference of the prison, linked to a series of bells, which quickly spread an alarm. Even if a determined prisoner made it beyond the walls, he would still have to traverse ten miles on foot, over wild moorland and bogs, an area frequently beset with fog and chilling winds, to reach the nearest town. Local residents turning in an escapee could expect a reward of a guinea. Yet, despite these daunting odds, scholar Nicholas Guyatt has tallied a total of twenty-four American POWs successfully making their way to freedom. ;Disorder Although the war ended with the Treaty of Ghent on 24 December 1814, American prisoners of war remained in Dartmoor because the British government refused to grant them parole or to take any steps until the treaty was ratified by the
United States Senate The United States Senate is a chamber of the Bicameralism, bicameral United States Congress; it is the upper house, with the United States House of Representatives, U.S. House of Representatives being the lower house. Together, the Senate and ...
on 17 February 1815. It took several weeks for the American agent to secure ships for their transportation home, and the men grew very impatient. On 4 April, a food contractor attempted to work off some damaged hardtack on them in place of soft bread, but was forced to yield by their insurrection. The commandant, Captain T. G. Shortland, suspected them of a design to break out of the gaol. This was the reverse of the truth in general, as they would lose their chance of going on the ships, but a few had made threats of the sort, and the commandant was very uneasy. At about 6:00 pm on 6 April, Shortland discovered a hole from one of the five prisons to the barrack yard near the gun racks. Some prisoners were outside the fence, noisily pelting each other with turf, and many more were near the breach (and the gambling tables), though the signal for return to prisons had sounded. Shortland was convinced of a plot, and rang the alarm bell to collect the officers and have the guards ready. This precaution brought back a crowd just going to quarters. Just then a prisoner broke a gate chain with an iron bar, and a number of the prisoners pressed through to the prison market square. After attempts at persuasion, Shortland ordered a charge which drove some of the prisoners in. Those near the gate, however, hooted at and taunted the soldiery, who fired a volley over their heads. The crowd yelled louder and threw stones, and the soldiers, probably without orders, fired a direct volley which killed and wounded a large number. Then they continued firing at the prisoners, many of whom were now struggling to get back inside the blocks. Finally the captain, a lieutenant and the hospital surgeon (the other officers being at dinner) succeeded in stopping the shooting and started caring for the wounded – about 60, 30 seriously, besides seven killed outright. The affair was examined by a joint commission, Charles King for the United States and F. S. Larpent for Great Britain, which exonerated Shortland, justified the initial shooting and blamed the subsequent deaths on unknown culprits. Following these findings, Shortland was rewarded with a promotion. Despite being labelled "The Dartmoor Massacre", the British government paid compensation to the American families of those killed and pensioned the disabled. A memorial has been erected to the 271 prisoners of war (mostly seamen) who are buried in the prison grounds. By July 1815 at least 270 Americans and 1,200 French prisoners had died.


1815 closure, and reopening

After all American and French prisoners had been released, and repatriated, the gaol on Dartmoor was left unused for 35 years until 1850. Work then began to rebuild and recommission the prison for civilian convicts. It reopened in 1851. The POW remains that had been originally buried on the moor were exhumed and re-interred in two cemeteries behind the prison when the prison farm was established in about 1852. During the
First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
in 1917, criminals were removed from the gaol when it was converted into a Home Office Work Centre for
conscientious objectors A conscientious objector is an "individual who has claimed the right to refuse to perform military service" on the grounds of freedom of conscience or freedom of religion, religion. The term has also been extended to objecting to working for ...
granted release from other prisons. The cells were left unlocked, inmates wore their own clothes and could go outside to visit the village in their off-duty time.


Notoriety

In 1920, the prison began housing UK criminals. It would develop a reputation for housing some of Britain's most serious offenders that included murderers, gangsters, thieves, spies, and robbers such as Jack “the Hat” McVitie, Jack “Spot” Comer, John George Haigh, and Frank Mitchell. Prisoners made numerous attempts to get out of the prison and onto the moors, leading to massive manhunts by the police and prison service. Instances of disobedience included a model prisoner attacking a popular guard with a razor blade and rough treatment by prisoners of a prisoner being removed to solitary. ;Mutiny The prison's tough conditions eventually led to its worst outbreak of violence on 24 January 1932. The cause of the riots is generally attributed to prisoners' perceptions of poor quality of the food, not generally but on specific days prior to the disturbance when it was suspected it had been tampered with. At the parade later that day, 50 prisoners refused orders, and the rest were marched back to their cells but refused to enter. At this point, the prison governor and his staff fled to an unused part of the prison and secured themselves there. The prisoners then released those held in solitary. There was extensive damage to property, and a prisoner was shot by one of the staff, but no prison staff were injured. According to the du Parcq report into the riot: "Reinforcements arrived, and within fifteen minutes these 'vicious brutes', who for some two hours had terrorized well-armed prison staff, and effectively controlled the prison, had surrendered and been locked up again". ; Notable prisoners * Michael Davitt * Peter Hammond, founder of Hammond, Louisiana, US * Fred Longden * John Rodker *
Moondyne Joe Joseph Bolitho Johns ( February 1826 – 13 August 1900), better known as Moondyne Joe, was an English convicts in Australia, convict and Western Australia's best-known bushranger. Born into poor and relatively difficult circumstances, he became ...
* Thomas William Jones, Baron Maelor * John Boyle O'Reilly * Arthur Owens *
Éamon de Valera Éamon de Valera (; ; first registered as George de Valero; changed some time before 1901 to Edward de Valera; 14 October 1882 – 29 August 1975) was an American-born Irish statesman and political leader. He served as the 3rd President of Ire ...
* F. Digby Hardy *
John Williams John Towner Williams (born February 8, 1932)Nylund, Rob (November 15, 2022)Classic Connection review, ''WBOI'' ("For the second time this year, the Fort Wayne Philharmonic honored American composer, conductor, and arranger John Williams, who w ...
* Frank Mitchell * Reginald Horace Blyth * Darkie Hutton * John George Haigh * Bruno Tolentino, who eventually was deported to Brazil where the major part of his oeuvre was published. ''"A Balada do Cárcere"'' (1996) is a poetic recollection of the time spent in Dartmoor. *Fahad Mihyi,
Popular Front for the Liberation of Palestine The Popular Front for the Liberation of Palestine (PFLP; ) is a secular Palestinian Marxist–Leninist organization founded in 1967 by George Habash. It has consistently been the second-largest of the groups forming the Palestine Liberation ...
terrorist behind the 1978 London bus attack * Aravindan Balakrishnan


Modern operations

Dartmoor continues to suffer from its age. In 2001 a Board of Visitors report condemned sanitation, as well as highlighting a list of urgent repairs needed. A year later, the prison was converted to a Category C prison for less violent offenders. In 2002, the Prison Reform Trust warned that the prison might be breaching the
Human Rights Act 1998 The Human Rights Act 1998 (c. 42) is an Act of Parliament (United Kingdom), Act of Parliament of the United Kingdom which received royal assent on 9 November 1998, and came into force on 2 October 2000. Its aim was to incorporate into UK law the ...
due to severe overcrowding. A year later, however, the Chief Inspector of Prisons declared that the prison had made substantial improvements to its management and regime. In March 2008, staff at the prison passed a
vote of no confidence A motion or vote of no confidence (or the inverse, a motion or vote of confidence) is a motion and corresponding vote thereon in a deliberative assembly (usually a legislative body) as to whether an officer (typically an executive) is deemed fi ...
in the governor Serena Watts, claiming they felt bullied by managers and unsafe. Dartmoor is now a Category C prison, which means it houses mainly non-violent offenders and white-collar criminals. It also holds people with convictions for sexual offences, but it is designated as a support site only for these individuals, and as such does not offer treatment programmes for them. Dartmoor operates cell accommodation on six wings. Education is available at the prison (full and part-time), and ranges from basic educational skills to
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courses. Vocational training includes
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,
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and
carpentry Carpentry is a skilled trade and a craft in which the primary work performed is the cutting, shaping and installation of building materials during the construction of buildings, Shipbuilding, ships, timber bridges, concrete formwork, etc. C ...
courses up to City & Guilds and
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level, Painting and Decorating courses, industrial cleaning and
desktop publishing Desktop publishing (DTP) is the creation of documents using dedicated software on a personal ("desktop") computer. It was first used almost exclusively for print publications, but now it also assists in the creation of various forms of online co ...
. Full-time employment is also available in catering, farming, gardening, laundry,
Braille Braille ( , ) is a Tactile alphabet, tactile writing system used by blindness, blind or visually impaired people. It can be read either on embossed paper or by using refreshable braille displays that connect to computers and smartphone device ...
, contract services, furniture manufacturing and
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. Employment is supported with NVQ or City & Guilds vocational qualifications. All courses and qualifications at Dartmoor are operated by South Gloucestershire and Stroud College and Cornwall College. The " Dartmoor Jailbreak" is a yearly event, in which members of the public "escape" from the prison and must travel as far as possible in four days, without directly paying for transport. By doing so they raise money for charity. In September 2013, it was announced that discussions would commence with the Duchy of Cornwall about the long-term future of HMP Dartmoor. In January 2014 it was stated on the BBC news website that the notice period with the Duchy for closing is 10 years. In November 2015 the Ministry of Justice confirmed that, as part of a major programme to replace older prisons, it would not renew its lease on the prison. It was announced in October 2019 that HMP Dartmoor would close in 2023, but in December 2021 it was confirmed that, following negotiations with the Duchy, it would remain open beyond 2023 and for the foreseeable future. The region, and the prison, is contaminated by hazardous
radon Radon is a chemical element; it has symbol Rn and atomic number 86. It is a radioactive noble gas and is colorless and odorless. Of the three naturally occurring radon isotopes, only Rn has a sufficiently long half-life (3.825 days) for it to b ...
gas generated by the decay of
uranium Uranium is a chemical element; it has chemical symbol, symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Ura ...
in the region's bedrock, and prison walls. In 2023, 96 inmates of the prison were evacuated due to this. According to one source no inmates or staff are said to have suffered adverse health effects from radon poisoning at HMP Dartmoor, although this is disputed. In 2024, Dartmoor's 682 prisoners were transferred to other prisons due to the unsafe levels of radon, and the prison closed for radon mitigation. While the closure was stated to be "temporary" (although no planned reopening date was announced), Princetown villagers expressed doubt that the jail would ever reopen because of the complications of rehabilitating such an old building, although a new 25-year lease of the prison from the Duchy of Cornwall had been entered into in 2023. Radon concentrations of 14 times the permissible limit have been recorded in the prison, and in 2025 about 500 inmates and staff, many of whom attributed serious health problems including
cancer Cancer is a group of diseases involving Cell growth#Disorders, abnormal cell growth with the potential to Invasion (cancer), invade or Metastasis, spread to other parts of the body. These contrast with benign tumors, which do not spread. Po ...
s to radon, were planning to sue the Ministry of Justice.


Dartmoor Prison Museum

The Dartmoor Prison Museum, which focuses on the history of HMP Dartmoor, is located in the old dairy buildings; exhibits include the prison's role in housing
prisoners of war A prisoner of war (POW) is a person held captive by a belligerent power during or immediately after an armed conflict. The earliest recorded usage of the phrase "prisoner of war" dates back to 1610. Belligerents hold prisoners of war for a ...
from the
Napoleonic Wars {{Infobox military conflict , conflict = Napoleonic Wars , partof = the French Revolutionary and Napoleonic Wars , image = Napoleonic Wars (revision).jpg , caption = Left to right, top to bottom:Battl ...
and the War of 1812, manacles and weapons, memorabilia, clothing and uniforms, famous prisoners, and the changed focus of the prison. It sold garden ornaments and other items made in the prison concrete and carpentry shops by prisoners engaged in educational courses. There are also displays and information on less well known aspects of the prison, such as the incarceration of conscientious objectors during World War One. The museum remained open during the closure of the prison for radon mitigation from 2024.


In popular culture

*The adventure story ''A Rogue by Compulsion. An Affair of the Secret Service'' (1915) by Victor Bridges begins with a dramatic escape from Dartmoor. *In the John Galsworthy play, '' Escape'', Dartmoor is the prison from which the hero, Captain Denman escapes. The stage production in 1927 starred Leslie Howard and the 1930 film version starred Sir Gerald du Maurier. *The 1929 movie '' A Cottage on Dartmoor'' begins with an escapee from Dartmoor prison, and proceeds to a flashback as to how he came to be incarcerated. *'' Decline and Fall'', a novel by
Evelyn Waugh Arthur Evelyn St. John Waugh (; 28 October 1903 – 10 April 1966) was an English writer of novels, biographies, and travel books; he was also a prolific journalist and book reviewer. His most famous works include the early satires ''Decli ...
, first published in 1928 makes thinly disguised references to Dartmoor Prison. *Dartmoor Prison is mentioned in '' The Thirteen Problems'', a short story collection written by
Agatha Christie Dame Agatha Mary Clarissa Christie, Lady Mallowan, (; 15 September 1890 – 12 January 1976) was an English people, English author known for her 66 detective novels and 14 short story collections, particularly those revolving ...
, and first published in 1932. Christie's '' The Sittaford Mystery'' (1931) is set on Dartmoor and features an escaped prisoner. *
Arthur Conan Doyle Sir Arthur Ignatius Conan Doyle (22 May 1859 – 7 July 1930) was a British writer and physician. He created the character Sherlock Holmes in 1887 for ''A Study in Scarlet'', the first of four novels and fifty-six short stories about Hol ...
made reference to 'Princetown Prison' in four stories that he wrote between 1890 and 1903. In ''The Hound of the Baskervilles'' (1902), an escaped prisoner from Princetown serves as a red herring for Holmes and Watson. *'' Dressed to Kill'', a 1946
Sherlock Holmes Sherlock Holmes () is a Detective fiction, fictional detective created by British author Arthur Conan Doyle. Referring to himself as a "Private investigator, consulting detective" in his stories, Holmes is known for his proficiency with obser ...
film uses Dartmoor Prison in the plot as the supposed location where three music boxes were made that contain a secret code for a criminal gang. *In the ''Tales of Old Dartmoor'' episode (recorded in 1956) of The Goons radio comedy series, Grytpype-Thynne arranges for the prison to put to sea to visit the Château d'If in France as part of a plan to find the treasure the Count of Monte Cristo hid there. A cardboard replica is left in its place, which is left standing after the original Dartmoor Prison sinks with all hands at the end of the episode. *In an episode of '' The Saint'' television series entitled "Escape Route" (1966), Simon Templar ( Roger Moore) is sent to Dartmoor to uncover a planned escape. *In 1988, the prison played host to a storyline in ''
EastEnders ''EastEnders'' is a British television soap opera created by Julia Smith (producer), Julia Smith and Tony Holland which has been broadcast on BBC One since February 1985. Set in the fictional borough of Walford in the East End of London, the ...
'', where
Den Watts Den Watts is a fictional character from the BBC soap opera ''EastEnders'', played by actor Leslie Grantham. He became well known for his tabloid nickname, "Dirty Den". Den was the original landlord of The Queen Victoria public house from Albert ...
(played by
Leslie Grantham Leslie Michael Grantham (30 April 1947 – 15 June 2018) was an English actor who played "Dirty" Den Watts in the BBC soap opera ''EastEnders''. He was a convicted murderer, having served 10 years for the killing of a West Germany, West German ...
) was being held on remand for arson at a prison called Dickens Hill. He was joined by Nick Cotton (played by John Altman), imprisoned for a different offence. *Dartmoor prison is implicated in the local Dartmoor ' Hairy hands' ghost story/
legend A legend is a genre of folklore that consists of a narrative featuring human actions, believed or perceived to have taken place in human history. Narratives in this genre may demonstrate human values, and possess certain qualities that give the ...
. *Dartmoor prison plays a central role in ''The Lively Lady'', American author Kenneth Roberts' 1931 historical novel taking place during The
War of 1812 The War of 1812 was fought by the United States and its allies against the United Kingdom of Great Britain and Ireland, United Kingdom and its allies in North America. It began when the United States United States declaration of war on the Uni ...
*In the first episode of the second TV series of '' James May's Man Lab'',
James May James Daniel May (born 16 January 1963) is an English television presenter and journalist. He is best known as a co-presenter, alongside Jeremy Clarkson and Richard Hammond, of the motoring programme ''Top Gear (2002 TV series), Top Gear'' fr ...
and Oz Clarke were demonstrating map-reading skills by pretending to escape from Dartmoor prison and cross
Dartmoor Dartmoor is an upland area in southern Devon, South West England. The moorland and surrounding land has been protected by National Park status since 1951. Dartmoor National Park covers . The granite that forms the uplands dates from the Carb ...
to their escape car (although they had to start their escape from outside the prison grounds as they were not allowed permission inside the prison). *One of the intersecting story lines in Edward Marston's novel, ''Shadow of the Hangman'' (2013) involves two American seamen who escape during the 1815 riot. *The prison and the American sailors imprisoned towards the end of the
War of 1812 The War of 1812 was fought by the United States and its allies against the United Kingdom of Great Britain and Ireland, United Kingdom and its allies in North America. It began when the United States United States declaration of war on the Uni ...
are central to Simon Mayo's 2018 novel ''Mad Blood Stirring''. *The narrator of the
Hammond Innes Ralph Hammond Innes (15 July 1913 – 10 June 1998) was a British novelist who wrote over 30 novels, as well as works for children and travel books. Biography Innes was born in Horsham, Sussex, and educated at Feltonfleet School, Cobham, Surrey ...
novel Maddon's Rock is sentenced to (and escapes from) Dartmoor along with a co-conspirator after being wrongly convicted of mutiny.


References


External links


Ministry of Justice pages on DartmoorDartmoor Prison MuseumHMP Dartmoor - HM Inspectorate of Prisons Reports
{{DEFAULTSORT:Dartmoor (Hm Prison) Category C prisons in England Dartmoor Prisons in Devon 1809 establishments in England Museums in Devon Prison museums in the United Kingdom Men's prisons Grade II listed prison buildings Grade II listed buildings in Devon Princetown