Most addicts actually sell their prescribed methodone to those who want it, then go out and buy heroin.

I agree with mg's post whole heartedly, and think that is the only way forward.

They have clinics just like that for those with eating disorders over here in th UK (not for obesity, just anorexia nervosa and bulimia). The patients are only allowed to leave when they have fully recovered. They get councilling and help and constant supervision.

If many addicts were sent to these linics, the prison spaces would be free for more hardened criminals to do their time. The drugs which can be smuggled into the prisons are phenomenal.