United States v. Garcia was a 2007 Seventh Circuit Court of Appeals case regarding the use of GPS devices.

The court ruled that placing a GPS tracking device on a personal vehicle without a warrant did not violate a suspect's Fourth Amendment rights.

Shortly after his release from prison, the police learned that he intended to begin manufacturing meth once again.

The court also noted that the use of a tracking device, as in Katz substituted for visual surveillance, which does not normally require a warrant.

It is with this in mind that the court closes its decision by noting that a program of mass surveillance, which would be infeasible without the use of GPS devices, would not necessarily be constitutionally protected.