Tracking devices are already flawed, the media is advertising where they might be hidden, where they are not as effective ect ect.Thieves are not totally stupid. Tracking cars in the motor industry has been available for years but eventually the thieves get wise and are able to out wit them. People often tell me with a transponder in my ignition key my car is safe, cobblers a scam a while ago thieves hired cars and vans for the day removed the transponder and fastened it up near the steering column then had a new key cut. Hand the vehicle back no obvious sign of anything wrong, a couple of days later the thieves come back and just take the vehicle using the newly cut key. Thats just 1 example the solution needs to be different. Surely there must be some uni grads able to develop something as part of their degree?