He has none.
It's the responsibility of each individual to be ready and able to deter his depredations with lethal force, if necessary.
being prepared is not all about being able to deter people, often its also about helping others. A temporary short term disaster a month or so is fairly easy to prepare for. but something long term is not. Often a small group of like minded people will group together and pool resources as a group which in its self is a a means of protection from roving looters and gangs.