Police in Iowa and Florida have found a new method of tracking cars they’re chasing, reports CNET. It’s called Starchase. Essentially, it’s a cannon that fires “bullets” that are sticky GPS devices. The operation of the compressed air gun is simple. The officer in the driver’s seat presses one button, the grill opens, and the gun fires the bullet. If all goes well, the bullet, with a GPS device enclosed, sticks to the back of the car being pursued. Once it does, the officer can slow down, because the suspect’s car will be tracked along the computer screen. The suspect driver may believe the police have given up and slow down. There is one drawback: The system costs $5,000, and each bullet sets the taxpayer back $500.