The US Dept. of Justice for now will not challenge an appellate court ruling that requires it to obtain a warrant before placing a GPS tracking device on a private vehicle. The case that invalidated the warrantless trackers arose out of an electrician suspected in numerous pharmacy burglaries in the northeast. The Supreme Court said in United States v. Jones that attaching a GPS tracking device to a suspect’s car constituted a physical intrusion by the government. But the justices stopped short of saying police needed a warrant.

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