Criminals existed since the dawn of times. For every single law established there have always been people to consider themselves above it. And there will always be people suffering from the former. And thus every country and state requires powerful organizations to protect the law.
However, crime can also be organized in a similar fashion. Bands, gangs, cartels, gatherings of various sorts - there were plenty of them before the War, lots were created during the War, and even now they still exist in vast numbers across the country. In every city, town and village. And no city guard, no police or security force can do anything to help the problem.
Doesn't mean we would accept it lightly, though.