HMP Dartmoor: Temporary Closure

Thursday 25th July 2024 Written Statements

[The Lord Chancellor and Secretary of State for Justice (Shabana Mahmood)]

I would like to announce the decision to close HMP Dartmoor temporarily, as His Majesty’s Prison and Probation Service manage the levels of radon at HMP Dartmoor to ensure the safety of staff and prisoners.

Our prisons are in crisis. This is the most recent illustration of why this Government were forced to take urgent action to release pressure on the estate. We are committed to locking up the most dangerous offenders and protecting the public. Public safety will always be this Government’s priority.

Radon is a colourless, odourless radioactive gas formed by the radioactive decay of the small amounts of uranium that occur naturally in all rocks and soils, and is naturally more prevalent in the south-west of England. Studies have shown that increased exposure to radon increases the risk of lung cancer. His Majesty’s Prison and Probation Service has been working with specialist radon experts over the past six months to manage the levels of radon at the prison.

Following the latest readings of radon found in non-accommodation areas of the prison on 12 July, the operational decision was taken by His Majesty’s Prison and Probation Service to move all prisoners out of HMP Dartmoor, over a two-week period, and to close the prison temporarily while further mitigation and investigation takes place.

This was an operational decision as it had become unviable to continue with the mitigations to reduce radon while also running an effective prison regime. The Government will continue to work with staff at HMP Dartmoor and trade unions to manage the impact on staff, and prisoners are being transferred to other prisons of an appropriate security level.

The Government have already taken decisive action to address prison capacity pressures. While the loss of capacity at HMP Dartmoor will put additional strain on the system, the Government are confident the system can be sustained until the implementation of SDS40 in September, the measure I announced on 12 July which will change the automatic release point for those serving standard determinate sentences from 50% to 40%.

We will publish a 10-year capacity strategy later this year. We will build prison places, acquire land for new prison sites and classify prisons as being of national importance, placing decision making on planning for new prisons in Ministers’ hands. The Government are committed to longer-term reform of the system and reducing reoffending —making sure that punishment is effective and prisons make better citizens, not better criminals.

[HCWS21]