I don't take the issue of decriminalizing marijuana lightly. It almost happened when we were the government. The legislation came that close to being passed.
I grew up in India until I was 17, and marijuana grew wild everywhere. Nobody touched it. Even the animals didn't touch it. It still grows wild.
Let's assume you decriminalize marijuana--or at least its possession or growing it for personal use--what is there to prevent crystal meth or something else from becoming the item that's traded? Just two or three days ago, a couple of Indo-Canadians were caught on the way to Edmonton or Calgary in a car with one or two kilos of crystal meth. Where do you go? How do you deal with that?