National District Attorneys Association, Amicus Curiae
John M. Castellano, Counsel of Record
The National District Attorneys Association is the largest association of prosecuting attorneys in the United States, representing 2,500 elected and appointed district attorneys. John M. Castellano is has served as the deputy executive assistant district attorney for Queens County, New York, since August 1983. The following is excerpted from the Amicus Curiae Brief for Respondent as submitted to the U.S. Supreme Court on October 2, 2017. In the course of investigating a four-month-long string of armed robberies in Detroit, prosecutors obtained three separate court orders under Section 2703(d) of the Stored Communications Act for historical cell-site location information (CSLI) —…