I think some of the things that are solutions, Canada is already doing, such as having a safe injection site and experimenting with heroin maintenance, which has worked successfully in different parts of Europe. I think that is one way of reducing the black market demand for drugs.
I also think that the Dutch have shown us something about the value of separating the markets for soft drugs and hard drugs. They have much lower consumption of cannabis among young people, in spite of the coffee shops. And they've been able to reduce the level of young people moving into hard drugs because of the fact that they've made it easier to regulate access to cannabis.