@The Dude phil phil,
Hi folks, this is my first non-intro post too. I have actually hesitated to post before now as philosophy is such a vast subject, I've felt I couldn't represent myself too well in a post without dedicating several hours to it! However, with that attitude, I'll never post anything, and although this isn't really an area of philosophy I'm especially interested in, it's something I have a LOT of experience of, so here goes.
I am a reformed heavy drug user, more than a decade clean, having extensively used cannabis, amphetamines, ecstasy, LSD and cocaine. Never heroin, specifically. I think common sense dictates the need to legalise, quality control and monitor the usage of all drugs. They exist, period. Fighting their production and distribution is a losing battle which costs the taxpayer needless billions, not only in law enforcement funding, but also in crime and its aftermath. Legalisation would, at a stroke, wipe out all sorts of criminal enterprises.
Perhaps the illegality of drugs is a red herring though... prehaps the question which should be being asked is not, "Why are drugs illegal?", but, "What kind of society do we live in where so many people feel the need to do this to themselves and so radically alter their perception of it?" No government or ruling class wants the masses thinking about how dreadful life actually is, and how much better and fairer it could be. That's how revolution comes about.....
As far as my position on drug use goes, well, I am similar to Bill Hicks; I quit drugs a long time ago, after having eventually a seriously bad time on them, but I'm still not necessarily anti-drugs. They can be stupendous fun, and they really can open your mind. I even once had an out-of-body experience on LSD, which was the most awesome and most tranquil experience I've ever had. ...but I would NEVER go there again! My sanity is not worth it. Again though, with the mind-opening... THAT is the real reason drugs are illegal. The ruling class do not want your mind to be opened, they do not want you thinking outside the box. They want you to think that the best plan of action is to work your **** off every day of the week, to get marginally more pennies (for that is really what you earn) to commit yourself to marginally bigger purchases and bind yourself into the web of consumerism which holds all the little people in place for the big people to skim money off and live in luxury at leisure. This, assuredly, is NOT the best plan of action! Don't get me wrong, I want a Ferrari and a mansion, but I will NOT sacrifice my soul to obtain it. I work as little as possible to get by, leaving as much time as possible for me to do things I actually WANT to do, as opposed to buying into the crap that you NEED to work 40+ hours per week, you NEED this new phone, your shoes NEED to be made by this company, etc., etc. It's all BS. Drugs can help you realise that.
With all that said, I wouldn't necessarily recommend taking drugs. It's something which requires careful thought, but it can be something which can really change the way you think for the better, as opposed to the one-sided, brainwashing drivel which the mass media would have you believe, i.e. if you take drugs, you will lose everything and everyone. In the vast majority of cases, that simply is not true.