Kryzantine said:
The second consideration is drugs. Where there's prostitutes, there's drugs. You've got the street hookers, they've got the street drugs. You got the brothels, you got the party drugs. The two simply go hand-in-hand. Allowing prostitution while trying to keep drugs illegal is nigh impossible - the girls might use, the guys mostly use. This is one of the reasons the US has kept prostitution officially illegal, but informally semi-legal.
I'm going to go ahead and put this under "correlation, not causation". The reason that prostitutes often have drugs is not because they are prostitutes. It probably has more to do with them being illegal, and being around people who manage illegal businesses. It's like with pot: pot is a "gateway drug" not because it's a drug (otherwise you could easily apply it to booze) but because it's ILLEGAL.
Your point being? Because this is exactly what I'm saying, the two go hand-in-hand. You're not disproving anything.
The third consideration is that prostitution is one of the few low-level crimes left. The police keep prostitutes around, especially in crime riddled neighbourhoods, because they're usually poor, young people who can't afford to spend time in jail. They can serve two uses. The first is that they know the neighbourhood they work in really well, and they hear a lot of things. The second is the probability that prostitutes may be open to the actual criminal underworld itself, and they're easy to push. If the police want to know the street rumor, or if they want to make a push on a local drug dealer, the first people they go to are prostitutes, because they know a lot.
So...? Prostutition should be illegal because... it helps the cops? Bad argument. Also, proof that this isn't just, well, hollywood's picture of reality? You're painting this bizarre picture that the average prostitute is, well, a spy for the police. Never mind that they still get arrested from time to time. Never mind that it's kind of a ridiculous idea overall. I just can't see this, I'm sorry. Evidence?
Actually, if anyone is painting a picture here, it would be you. In no way did I say prostitutes work as spies for the police. They can and do function as informants, some of them. Some of them will be arrested. In fact, part of my whole point is that this activity is limited to certain areas, in that prostitutes will be targetted by the cops in some areas and ignored in others. If anything, the only picture I'm "painting" is that there exists red light districts in areas where prostitution is technically illegal. I'm a photographer, not a painter, BTW.