There are fears that hundreds more inmates and staff have been exposed to unsafe levels of cancer-causing gas, with the Ministry of Justice now investigating 42 prison and probation sites, The Independent can reveal.
HMP Dartmoor in Devon was closed in 2024 after levels of radon 10 times higher than the recommended limit were recorded in one area. The government is currently spending around £4m a year of taxpayers’ money on the empty prison because it is locked into a lease signed after high levels of the toxic gas were discovered.