New York City police bought a range of surveillance tools—including facial-recognition software, predictive policing software, vans equipped with x-ray machines to detect weapons, and “stingray” cell site simulators—with no public oversight, according to documents released Tuesday.In all, the documents show that the NYPD spent at least $159 million since 2007 through a little-known “Special Expenses Fund” that did not require approval by the city council or other municipal officials. The documents were made public by two civil rights groups, the Legal Aid Society and the Surveillance Technology Oversight Project (STOP), which say the practice amounted to a “surveillance slush …
