United States v. Pineda-Moreno, 591 F.3d 1212 (2010)[1] was a 2010 Ninth Circuit Court of Appeals case regarding the use of GPS devices.

Juan Pineda-Moreno came under suspicion by the Drug Enforcement Administration after he was spotted purchasing a number of supplies used in the production of marijuana.

During their four-month investigation of Pineda-Moreno, the agents repeatedly placed GPS tracking devices on the undercarriage of his car.

The majority of the opinion is devoted to expressing concern that the court has so limited the privacy enjoyed within the area of the home, noting that just because an uninvited child might run into a private individual's driveway does not mean that the police automatically gain that privilege.

used to track and record the movements of millions of individuals can be used by the police to detect patterns and develop suspicions.