Cops in Minnesota and Ohio have developed a fleet of "bait cars" — cars left on the street with the keys in the ignition as a honeypot for snagging car thieves. The cars are equipped with hidden cameras and satellite trackers for evidence gathering and apprehension, and with specially fitted car-radios that play the theme from "Cops" during the bust itself.
I remember the Toronto cops once tried a bait-bike and were quite successful, snagging dozens of bike-thieves in a short time, but had to give it up because the bait-bike got stolen while the cops were busy arresting someone for trying to steal it.
(via Engadget)
