Two weeks after the 2005 London bombings , a new directive stated that New York City would institute a citywide transit Auxiliary program with the intent of reducing crime and fighting terrorism in the city 's transit system . Transit Auxiliary officers work out of Transit Bureau precincts known as Districts and carry Transit portable radios . Unlike a precinct , the transit districts cover miles of underground subway . Transit Auxiliary Police officers go through additional training by the Transit Bureau Vandals Squad as well as the Counter-Terrorism Division to build vandalism and terrorism awareness within the Transit System . Transit Auxiliary officers are paired with either a regular police officer or Auxiliary police officer . Transit Auxiliary Police periodically perform inspections of the subway station ( s ) and platforms which they are assigned to , taking note of any suspicious occurrences , and set up a fixed post at the subway turnstiles , token booths , mezzanines , or platforms . Transit Auxiliary officers also conduct subway train inspections as well as train runs to/from stations that which assignment is given . Due to the common medical emergency calls in Transit , if medically qualified , Transit Auxiliary Police officers can respond to medical emergencies if they are near to the transit location . The main function of the NYPD Transit Auxiliary Police , like the NYPD Transit Police , is to primarily remain within the subway system
2005 London bombings
7 July 2005 London bombings
New York City Police Department Auxiliary Police