One Way To Tackle The Problem
No, I'm not a fan of Big Brother. But it seems this is one of the few practical ways to catch or ward off violators.
There was an arsonist on the loose some time ago. When he started a dumpster fire on Protection Alley -- the same street where the above images were taken -- security cameras were used to catch him.
This is crossposted at my "bad" blog, Dogtown 12901, which you can access here. WARNING: Some images over there not safe for either work or mealtime.