Buried in his massive Trump-Russia report, special counsel Robert Mueller admits that he was able to pinpoint Blackwater founder Erik Prince’s precise location in January, 2017 by matching his cell phone signal to a cell site near Trump Tower in New York City, according to Rowan Scarborough of the Washington Times.
The special counsel’s report discloses the use of this investigative technique, by which police determine a suspect’s location via a cellphone’s GPS signal.
The Prince narrative is one instance in unredacted sections of the report in which Mr. Mueller’s team explicitly discloses cellphone tracking. It raises the question of whether the FBI applied the process to other investigative subjects — a phone’s GPS signal can disclose its exact location within a few feet. One of the first requests the FBI makes when confronting subjects is to ask for their electronic devices.
The fact Mr. Mueller could pinpoint Mr. Prince’s exact whereabouts suggest he used GPS readouts, which prosecutors can…