When notoriety reaches zero, if you attack someone whose notoriety is also zero, your notoriety will increase one point. Stop attacking and pray, and then your notoriety will turn to zero. Once you kill him or her, your notoriety will increase two points. When your notoriety is above zero, the guard NPC will attack you. Killed by the guard, you will be put into the prison. And you can finish imprisoning by prison breach, gambling or killing the time of imprisonment. If your notoriety is above one, the rate of losing your equipment will increase greatly.