The police in our city use bait cars to catch car thieves. So far its been working really well. The rate of car thefts are slowly decreasing.
What are bait cars you ask? well its just like the name sounds. The police leave the car sitting around in the hopes that someone steals it. They then send units to follow the car, and after awhile they cut the power to the engine of the car and arrest the thieves.
Bait Car Site
The site has some video of some actual arrests. It's actually qutie funny to see what the thieves talk about not knowing that there already screwed.
*** WARNING***
The videos have some swear words in them, nothing too serious just thought I'd let you know.