Law enforcement officers cannot plant a GPS device on a suspect's car without a warrant, according to a unanimous ruling by the U.S. Supreme Court. The opinion held that such a move constitutes an unlawful search in violation of the Fourth Amendment, but it did not directly address location-tracking privacy issues. Justices Samuel Alito, Ruth Bader Ginsburg, Stephen Breyer and Elena Kagan issued a concurring but separate opinion regarding privacy issues.

Related Summaries