Gerry was telling us last night about his time in rehab. 'I got through the first two stages - well the first step was just being there - but then they put us in a group and wanted us to talk. I walked out then.'
He'd been sent to rehab by a judge and he knew he'd have to go to prison if he left but he preferred that to talking things through with a load of addicts.
Rehabilitation will only work if the person being rehabilitated wants to be; it's not something that can be imposed.
It will be great if numbers in prison can be reduced - if only to relieve over-crowding - but the alternatives will need to be effective.