What is Esu?
1.
The Emergency Service Unit of the NYPD. This is the primary tactical unit equivalent to a SWAT team, and used in Special Operations. Emergency Service Units handle rescues, EDP's, suicidal's, and jobs that require specialized service.
Dispatch: "Emergency service Adam 10..."
ESU:"Adam"
Dispatch: "Adam respond to a suicidal at 1175 Grand Concourse"
ESU: "10-4"
See