Prostitution to be legalized?

I would say crime where a victim is involved. It matters because for society to function correctly, people trying to mess up the system have to be placed in a cube with other people who try and mess up the system to think about what they've done.

But isn't it true that in some cases (robbery, and a few times murder), the person either needed the money or was a victim to problems the other person caused?
Though it's true that many times this isn't the case, isn't still possible... there's no way we can identify justice, at least right now...