Triggerfish: Concerning or Useful Tool?

The Justice Department’s electronic surveillance manual explicitly suggests that triggerfish may be used to avoid restrictions in statutes like CALEA that bar the use of pen register or trap-and-trace devices—which allow tracking of incoming and outgoing calls from a phone subject to much less stringent evidentiary standards—to gather location data. “By its very terms,” according to the manual, “this prohibition applies only to information collected by a provider and not to information collected directly by law enforcement authorities.Thus, CALEA does not bar the use of pen/trap orders to authorize the use of cell phone tracking devices used to locate targeted cell phones.”

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