For more than two years, Adrian Schoolcraft secretly recorded every roll call at the 81st Precinct in Brooklyn and captured his superiors urging police officers to do two things in order to manipulate the "stats" that the department is under pressure to produce: Officers were told to arrest people who were doing little more than standing on the street, but they were also encouraged to disregard actual victims of serious crimes who wanted to file reports.
via The NYPD Tapes Confirmed – Page 1 – News – New York – Village Voice.