Carpenter v. United States and the Future Fourth Amendment

Carpenter v. United States set a course for rethinking Fourth Amendment rights in the digital age. The U.S. Supreme Court ruled that police must usually obtain a warrant to access historical cell site location information. The big question in Carpenter was whether the Court would continue to apply the third-party doctrine in the digital age or somehow limit its reach. Carpenter makes it clear that the Court is willing to reconsider old doctrines that do not fit with the realities of the digital age.