State v. Zahn
Annotate this CaseWithout obtaining a search warrant, police attached a global positioning system (GPS) device to Elmer Zahn's vehicle. The GPS device enabled officers to track and record the speed, time, direction, and geographic location of Zahn's vehicle within five to ten feet for nearly a month. Police used the information they gathered to obtain a search warrant for two storage units that Zahn frequently visited. Officers subsequently recovered drug paraphernalia and drugs from one of the storage units. Before trial, the trial court denied Zahn's motion to suppress the evidence that the officers discovered during the execution of the search warrant. Zahn was subsequently convicted of several drug possession charges. The Supreme Court reversed, holding (1) the attachment and use of a GPS device to monitor an individual's activities over an extended period of time requires a search warrant; and (2) thus, the warrantless attachment and use of the GPS device to monitor Zahn's activities for nearly a month was unlawful, and the evidence obtained through the use of the GPS device should be suppressed.
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