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Police Are Using Phone Tracking as a Routine Tool


GPS tracker

A GPS tracker. The Supreme Court recently ruled that such a device placed on a suspect's car was an unreasonable search.

Credit: Raymond McCrea Jones for The New York Times

Law enforcement tracking of cellphones, once the province mainly of federal agents, has become a powerful and widely used surveillance tool for local police officials, with hundreds of departments, large and small, often using it aggressively with little or no court oversight, documents show.

From The New York Times
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