Washington Examiner: “The D.C. Court of Appeals ruled on Thursday [September 21, 2017] that it is unconstitutional for law enforcement to use certain technologies that allow the tracking of a suspect’s cellular phone without a warrant. The ruling reversed a decision of the Superior Court of the District of Columbia that allowed police to use a particular tracking tool, the cell-site simulator, calling it a violation of Fourth Amendment privacy protections as they relate to policing tactics. Investigators have used cell-site simulators to act as fake cell towers to connect to devices they are searching instead of the device’s regular network.” [h/t Pete Weiss]