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The Supreme Court has granted a writ of certiorari in Carpenter v. United States, agreeing to review the decision by the U.S. Court of Appeals for the Sixth Circuit holding that the Fourth Amendment permits the government to permissibly access cell-site records revealing the user's location without a warrant. The case implicates serious ongoing debates over Fourth Amendment jurisprudence and will likely make for a major Supreme Court decision.
The Sixth Circuit's decision, along with the petition for a writ of certiorari, the government's brief in opposition, and the petitioner's reply to the government's brief are all available below.