as an anarchist, i'm always asked about the criminal justice problem. one issue with the whole thing is that the authorities are themselves often the criminals. but at any rate, here is some sort of model. the statist model is this: to constrain crime (whatever that means exactly), we will institute an irresistible armed force. after you do that, of course, you're liable to be its victim, with no recourse, and you've potentially constituted also a massive criminal enterprise, or just assigned the proceeds of all criminal enterprises to your little martinets. spontaneous organization for self-protection tries to resist both state and non-state killers, rapists, dealers, and so on.