I see the reasoning but i can't imagine it working. The drug does not cause them to commit crime they do it because they want it. I don't think there is a single person in the country that thinks it is a good idea to take something like heroin, they choose to do it, they choose not to get off it and then if they do a lot go straight back on.
Example of this is prisons, lots of schemes in there to help them off it, some leave prison clean but they go straight out and get a fix. They are druggies because they want to be druggies (in the main) and nothing is going to stop that.
Same with smokers, no one who smokes believbes it is healthy but they smoke because they like it, same for going out and getting drunk, not good but we do it anyway. Supersize Me - there was a stupid idea, yes eating McD's for 30 days isn't going to be good for you but you couldn't eat lettuce for 30 days and still be healthy, we know junk food is bad but hey it tastes good. Smack heads are just an extreme form of this, they won't give up unless they want to and i can't see a scheme like this actually making them stop.
m.