No, as people who cause crime don't care about laws. That's why they cause the crime in the first place. If anything it would cause them to commit more for the label or "ardnut" and getting the police to chase them.
It's like the law that was brought out to stop people carrying knifes, however it doesn't stop the crime. It only stops people who carried a knife for work or bits and pieces like opening packets who are suffering. My granda used to carry a Swiss Army Knife everywhere, as he's a janitor. Now he can't because they brought out that stupid law.
Also, I take my dog walks at about 12 - 1am. As the streets are quiet and it's refreshing to have a bit of peace and quiet in a town which is normally filled with people. So if there was a curfew, then me and my dog would have to go walking during the day, which is just boring.