Police rely on license plate cameras to help solve crimes. Recently, lookups of this data have surged by federal agencies, who are potentially using it for immigration enforcement in sanctuary states.
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Martin Kaste is a correspondent on NPR's National Desk. He covers law enforcement and privacy. He has been focused on police and use of force since before the 2014 protests in Ferguson, and that coverage led to the creation of NPR's Criminal Justice Collaborative.
