NYPD ESU Officers patrolling the area around Ground Zero in New York, 31st December, 2003
he New York City Police Department Emergency Service Unit is the Emergency Service Unit (ESU) for the New York City Police Department. A component of the Special Operations Division of the Patrol Services Bureau, the unit provides specialized support and advanced equipment to other NYPD units. For example, its Canine Unit helps with searches for perpetrators and missing persons. The Emergency Service Unit also functions as a Special Weapons and Tactics Unit (SWAT) and NYPD hostage negotiators assist and secure the safety of hostages. Members of ESU are cross trained in multiple disciplines for police and rescue work. They are always on patrol (all three tours, 365 days a year) with 10 Heavy Rescue trucks, each manned by a police officer and a sergeant, and often more than twice as many smaller Radio Emergency Patrol vehicles containing two ESU police officers.
The two officers pictured are part of an elite 'Sampson' Squad set up to guard specific sites in and around the city in the wake of the September 11th terrorist attacks.