I actually do think Harper's getting the right idea in targeting the distribution networks and in steering the user toward help. You can't simply ignore marijhanah - but you can control it. Control kicks down risk-fired mark-up and at least makes the attempt to keep it out of the hands of the vulnerable and the dealers.
None of it has looked into the pharmaceutical industry itself. Their products have been real poison. Oxyconton and Zoloft come to mind. I believe they have to do more testing on the binders and chemicals. A lot of them are carcinogens. What is so wrong with using opium as an active ingredient instead of synthesizing it with chemicals that we really know nothing about?
Woof!
Actually criminalisation ensures that the government has no direct control over the sale, distribution, quality or liability associated with the marketing of the drug. The only control is then the indirect tool of the police. The police can interfere in the production if they find out where it occurs, they can interfere in the distribution if they find out where it occurs. The police cannot do anything about ensuring that it stays out of the hands of the vulnerable unless they have ensured that it is in no one's hands, since they have no idea where the drugs are that aren't in police evidence rooms.
Using the police to try to find and eliminate hidden distribution networks is an irresponsible way to protect the vulnerable when you could control the distribution networks directly and provide a guarantee of protection for the vulnerable.