Most of the other places I'm aware of with such penetration of arms but no police basically rely on monetary bonds through family ties and intertribal appeals rather than trying to capture and imprison them. If the family won't accept the bonds and the criminal refuses to pay then they become an outlaw of sorts and have no recognition in society. A bit brutal, but then again so is mass imprisonment and a heavily armed police state. I make no claim whether it is better or worse.