Why not introduce eastern philosophies which revolve around the mind and body as instruments, such as Tai Chi and yoga?
Currently Prison Officers will not enter certain wings of the prison as they fear being overcome by wafting drugs.
The new management from the Ministry of Justice (MOJ) could import masters of the arts, so that prisoners may learn the mindset behind them.
Give prisoners a reward for taking the classes, in kind or monetary, whatever you feel best. Be generous and show weaker prisoners and frightened Prison Officers that you (the new management) have their backs and will be calming the drug-fuelled situation as soon as possible.
A net over exposed parts of the prison to catch drugs?
A patrolled perimeter with dogs behind a high chain-wire fence.?
A policy of shooting down all drones or send your own drones to patrol the perimeter.
It appears that they need non-drug fuelled activity. Of course you may need three zones of sectioning prisoners who are coming off drugs.
The MoJ has been watching the prison for months. Now it has hit the press. Expect frequent updates blaming whoever they can find, or ask them to respect your work.