A U.S. appeals court in Philadelphia has ruled that police can’t routinely put GPS devices on vehicles without search warrants.
The ruling last month comes a year after the U.S. Supreme Court said GPS tracking constitutes a police search _ but didn’t say if police need warrants to use them.
Police put a GPS device under their bumper of three brothers suspected in a series of pharmacy robberies, and soon tracked them to another burglary. They found pills and other property from the pharmacy in the van.
read more via http://www.lasvegassun.com/news/2013/nov/03/us-gps-tracking-warrants/