I think crime should work more like GTA, you have crime levels from 1 to 5 each level gives u a certain punishment, lawful areas should have more guards on hot spots, even guards on priests if there is griefing, and guard patrols on main roads, a bounty hunt system where players can earn cash for kill criminal, once the head is delivered to a blue priest or something the gosht of the criminal player will be locked in "jail" when he respawned. To report crime a player or NPC nearby can report the criminal