5.3) A Town/Nation Is Responsible For The Overall Security Of Their Lands
If you suspect a thief or have been robbed, contact your leaders. Do not spam chat (see rule 1.5). The city/town/nation that you are a member of is in charge of policing and protection and in that way also taking action against the thief. Only in extreme cases is a moderator to be called for something that should be taken care of In-Character (IC).
If you don't believe the existant of that rule, check it for yourself.
If you do believe in the existance of that rule, quit your bitchin'
Good day, sirs.