Alcohol and drug treatment in secure settings 2019 to 2020: report
There were 52,891 adults in alcohol and drug treatment in prisons and secure settings between 1 April 2019 and 31 March 2020. Around 62% started treatment this year; 50% of these reported a problem with opiate use, and 78% of these also had a problem with crack cocaine.
Source:
Public Health England