Chris Caya WBFO News

The Erie County Sheriff's Office should be barred from fishing expeditions with the public's cell phone data according to Assemblyman Sean Ryan, who Is calling on the state Attorney General to investigate.

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According to documents obtained by the New York Civil Liberties Union, the Erie County Sheriff's Department used its high-tech Stingray device to track cell phones 47 times in the last four years.  However,  there is some dispute over what the documents say.

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The Erie County Sheriff's Department has been told it must release details on a device which can duplicate a cell phone tower and tell the Stingray where the phone owner is.

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A judge has reserved decision in a dispute over surveillance technology being used by the Erie County Sheriff's Department.