Reuters / Robert Galbraith
Reuters / Robert Galbraith

Not only are local police departments across the United States increasingly relying on so-called StingRay devices to conduct surveillance on cell phone users, but cops are being forced to keep quiet about the operations, new documents reveal.

Recent reports have indicated that law enforcement agencies from coast to coast have been turning to IMSI-catcher devices, like the StingRay sold by Florida’s Harris Corporation, to trick ordinary mobile phones into communicating device-specific International Mobile Subscriber Identity information to phony cell towers — a tactic that takes the approximate geolocation data of all the devices within range and records it for investigators. Recently, the Tallahassee Police Department in the state of Florida was found to have used their own “cell site simulator” at least 200 times to collect phone data without once asking for a warrant during a three-year span, and details about the use of StingRays by other law enforcement groups continue to emerge on the regular.

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