U.S. v. Castetter

In prosecution on drug charge, Dist. Ct. did not err in denying defendant’s motion to suppress evidence sized from his Indiana home, where Michigan police had obtained warrant to place GPS device on third-party’s car and discovered drugs in third-party’s car after third party had visited defendant’s home. Defendant did not dispute validity of either first warrant that authorized placement of GPS device on third-party’s car or that police had probable cause for issuance of warrant to search his home. Moreover, Ct. rejected defendant’s argument that Michigan police lacked authority to monitor third-party’s car once said car had crossed over into Indiana or that police were forbidden to learn who was doing business on defendant’s property without having obtained warrant based on defendant’s own activities. Also, process of tracking car’s location by GPS does not offend any state’s sovereign rights, and Constitution is not offended when, by executing warrant to search one person, police learn incriminating details about another person.