[Molasar]

interesting that my employer (Colorado-based, just to be on-topic) has a drugs/alcohol policy based on the fact that these are intoxicants therefore making you a fucking menace in the workplace, not specifically because they're illegal although that is added as an afterthought.
that covers opiates so whether you're prescribed codeine for post-surgery analgesia or you're a street heroin jacking-up junkie, if you test positive on a random mandatory drug test you're in the shit.
quite right too for me, I don't want to trust my safety on a hazardous work site to some space cadet, legal or not.

that said, the so called 'war on drugs' was lost since even the repeal of the Volstead Act but the only reason for governments across the world and across the political divide to keep maintaining this fiction is to have a really neat way of imposing draconian suppression measures on a law-abiding but free-spirited population