This is interesting. From this CBS News report, it seems like the NYPD’s Joint Operations Center, which monitors and activates NYPD patrol units city-wide, is pretty much just looking at real-time information on Twitter (which you and I can do from home or on the street).
How Eric Garner's Death Changed New York And The NYPD
NYPD now has Toyota Camry LE Hybrid vehicles
Updating the fleet I see...
Look at this gigantic military NYPD rescue vehicle
WHAT IS THIS. Crazy.