High-speed police chases are, obviously, dangerous. If they can be avoided, it's generally accepted that they should be. That's why the new technology by a company called StarChase is so promising: rather than chasing perps, cops can simply shoot their cars with a GPS transmitter and they'll know where they are at all times.
The system uses a laser to aim at the back of a car, firing a GPS receiver, wireless transmitter , and battery in a little slug that sticks to the outside of the vehicle. The cops can then track the car in question without needing to keep it in sight, making apprehending the criminal much easier and safer for everyone involved.