From the NYCLU:
The NYPD has confirmed that it owns and operates Stingrays—controversial surveillance devices that spy on cell phones nearby and that can be used to track location—the New York Civil Liberties Union announced today. In response to an NYCLU FOIL request, the NYPD disclosed it used Stingrays nearly 1,016 times between 2008 and May of 2015 without a written policy and following a practice of obtaining only lower-level court orders rather than warrants. This is the first time the extent of the use of Stingrays by the NYPD has been made public.
Read more on NYCLU.
h/t, Joe Cadillic