Hmm... well, if there is any help needed in escorting out/dealing with those under the effects of drugs, I could lend a hand. I won't be staff or yoji or anything next year, but I do have quite the amount of knowledge of different drugs and what they can do to you and your system, as well as how to help calm people down on Acid and such. And no, I have never take a drug in my life except asprin, which doesn't work on me anyway so I don't take it anymore for headaches, but I had to deal with my dad and the rest of his side of the family; I've learned a few tips and tricks in dealing with him when he got into those kinds of states before he died. I'll be eighteen by next con anyway, so I can help out after hours too.
One thing... no matter where you are, ESPECIALLY at big conventions like this one(no matter how we try to deny it) be careful. This goes double for the dances and after-hours time. Never leave your drink alone and if you have to leave for a minute, take it with you or dump it. That's general common sense ^^
Also, be very, very careful if you find anyone at con under the effects of a bad Acid trip or LSD or another like substance; it happens rarely, but sometimes it can be easy to trigger a psychotic break in a person when using a drug that alters your brain in the way those do.
Another thing about the dances... if you're weirded out, get the hell out. Pupils are a tell-tale sign of drug use, as well as other things like how the person smells and such.
I agree with Himura's suggestion of punishment. If someone is found under the effects of drugs and just kept in isolation until the effects have passed, what deterrant is there to them doing it again; with possibly worse consequences? Also, I like the idea of having some kind of detox room, but it might be better to have two; one for those on the hard drugs and another for those who are just drunk or high; hell, maybe just escort theh igh and drunk ones back to their rooms. Drugs make people do things they wouldn't normally, which can lead to some very bad consequences for some.
And then there's the creepers who will take advantage of you. Again to the 'never leave your drink alone' suggestion. Even around friend's; they can't be expected to watch your drink 24/7.
Yup; there's my rant. ^^