I'm a Libertarian on this one. I think all drugs should be legal and taxed/regulated like booze.
People (especially addicts) are going to use if they want to. The war on drugs doesn't work!! Cocaine and herion are available, cheaper and
more potent than ever. What has been the cost? - ie. money, police manpower, drug violence, ruined lives in prison, etc, etc.
Drug addiction and Alcoholism are considered Medical Illness & should NOT be treated as a crime in themselves. Of course if you kill someone
while high, that's a different story. Also, drug dealing for immense profit and killing the competition is obviously a crime.