The Lawletter Vol 40 No 8
Mark Rieber—Senior Attorney, National Legal Research Group
The Fourth Circuit recently held that the Government's warrantless procurement of historical cell site location information ("CSLI"), for an extended period of time, recorded by the defendant's cell phone service provider, was an unreasonable search in violation of the defendant's Fourth Amendment rights, even though the CSLI records were kept by cell phone companies in the ordinary course of business. United States v. Graham, Nos. 12-4659 & 12-4825, 2015 WL 4637931 (4th Cir. Aug. 5, 2015). The court stated that the examination of a person's historical CSLI can enable the Government to trace the movements of the cell phone and its user across public and private spaces and thereby discover the private activities and personal habits of the user. Id. at *8.
Read More


