The Justice Department has said that law enforcement agents employ GPS as a crime-fighting tool with “great frequency,” and GPS retailers have told Wired that they’ve sold thousands of the devices to the feds.
But little is known about how or how often law enforcement agents use them. And without a clear ruling requiring agents to obtain a “probable cause” warrant to use the devices, it leaves citizens who may have only a distant connection to a crime or no connection at all vulnerable to the whimsy of agents who are fishing for a case.via Busted! Two New Fed GPS Trackers Found on SUV | Threat Level | Wired.com.
The Grey Enigma 