I was just following a poll about identify theft and considered how much more effective enforcement would be in this area if the victims were allowed to go after the criminals.

After I pondered this for a couple minutes, I thought, so why can't they? Is it illegal to find someone committing identity theft and detain them until the police come to take them (and probably you) into custody? A quick skim over a wikipedia article on citizen's arrest and the answer is maybe. It certainly might be. Are we as a society unwilling to do anything about crime?