State of Arizona v. Emilio Jean

Summary

The court held that warrantless GPS monitoring of the truck invaded Jean's reasonable expectation of privacy under the Fourth Amendment, even though he was a passenger who sometimes drove and the truck traveled on public roads for about three days. It nevertheless affirmed the denial of suppression because officers acted in objectively reasonable reliance on then-binding appellate precedent, making the good-faith exception applicable. The court vacated specified portions of the court of appeals' opinion while affirming Jean's convictions and sentences.