At Big Metro City PD where I used to work, I know auto theft was a serious problem. We had a variety of small import vehicles seized through asset forfeiture that we would put out as "bait cars" for auto thieves and then assign U. C. units to sit on them and wait for the theft to occur, which would eventually happen, and then chase them all crazy to get them.
Well in my new agency Medium Size City PD, we have "bait cars" too, but they bring a whole new game to the playing field. Our bait cars are again small import vehicles seized in asset forfeiture, but then we revamp them and bring them to a whole new level.
The cars are first outfit with GPS tracking. Then they are equipped with several night vision concealed video cameras so as to capture photographs of anyone in any seat in the vehicle. Then we install a kill switch and remote door lock. This allows us to not waste resources sitting on the vehicle, but alerts dispatch when any door is opened. They then start watching remote video feed and tracking the vehicle. They put out the bait car activation and start sending locations to the field units. When we have enough units behind the vehicle, we alert dispatch, they throw the kill switch, the vehicle engine dies, and the doors auto-lock, trapping the occupants inside. When we are set up and ready, we tell dispatch to unlock the vehicle, and remove the occupants at our convenience. It takes some of the sport out of it, but it still has high marks for just plain fun, "like shooting fish in a barrel".