I know the sim OWNER is LL, but if you look carefully, in the Land propierties you'll find the name of the "owner" or whaterver you want to call it.
Owner, in fact is the name SL gives to the people that rent a land and have full permission.
On the other hand, LL is doing nothing to "catch the criminals" if the land owner has no evidence of the "crime".
I've heard, that some security orbs may aboid some problems, and there are detectors agains certain viewers... but I don't know the name of those, that's why I ask.