You asked
What are the statistics for drugs within the current prison system?
Percentage shift of drug taking within the prison system over the past 10 years?
Please also provide figures on the misuse of drugs on arrival to prison and the release from prison.
We said
Thank you for your enquiry on drug use in the prison system.
We do not hold statistics relating to the prison system. The Ministry of Justice (MoJ) may be able to assist you further with your enquiry. Their email address is statistics.enquiries@justice.gov.uk.