G4's The Feed has a story about the Los Angeles Police Department's use of the StarChase system, a laser sighted projectile that mounts to a police cruiser and when deployed fires an adhesive gps bug that sticks to the bad guys car allowing the police to back off and track from a safe distance. StarChase says "It’s comprised of a tracking projectile with a miniaturized GPS receiver, radio transmitter, power supply and a launcher which can be hand-held or mounted on a police car." Their site, which may not have been updated in a while, has a video of the system in action... cool!
