The officer in the driver's seat presses one button, the grill opens, and the gun fires the [GPS-enabled] 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.According to a news report posted on the company's website, Austin PD has deployed the technology in 12 vehicles and is looking for grant money to expand the program. Cost is the big barrier to wider deployment. Each device costs $5,000 to install and each GPS dart costs around $500. But perhaps competition and/or economies of scale will drive those numbers down in years to come.
One further advantage, of course, is that the suspect's car will likely feel the police have given up and hopefully slow down.
This seems so blindingly intelligent -- at least until miscreants catch on -- that there can't be a drawback.