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  2. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    Ten-code. Ten-codes, officially known as ten signals, are brevity codes used to represent common phrases in voice communication, particularly by US public safety officials and in citizens band (CB) radio transmissions. The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code.[1]

  3. Police code - Wikipedia

    en.wikipedia.org/wiki/Police_code

    Police code. A police code is a brevity code, usually numerical or alphanumerical, used to transmit information between law enforcement over police radio systems in the United States. Examples of police codes include "10 codes" (such as 10-4 for "okay" or "acknowledged"—sometimes written X4 or X-4), signals, incident codes, response codes, or ...

  4. Emergency service response codes - Wikipedia

    en.wikipedia.org/wiki/Emergency_service_response...

    In the United States, response codes are used to describe a mode of response for an emergency unit responding to a call. They generally vary but often have three basic tiers: Code 3: Respond to the call using lights and sirens. Code 2: Respond to the call with emergency lights, but without sirens. Alternatively, sirens may be used if necessary ...

  5. New York City Police Department Emergency Service Unit

    en.wikipedia.org/wiki/New_York_City_Police...

    The Emergency Service Unit (ESU) is part of the Special Operations Bureau of the New York City Police Department. The unit provides specialized support and advanced equipment to other NYPD units. Members of ESU are cross-trained in multiple disciplines for police, medical, and rescue work. ESU is always on patrol (all three tours, 365 days a ...

  6. Emergency Service Unit - Wikipedia

    en.wikipedia.org/wiki/Emergency_Service_Unit

    An emergency service unit (ESU), alternatively emergency service detail (ESD) or emergency service squad (ESS), is a type of unit within an emergency service, usually police, that is capable of responding to and handling a broader or more specific range of emergencies and calls for service than regular units within their organization, such as rescue, emergency management, and mass casualty ...

  7. Police ranks of the United States - Wikipedia

    en.wikipedia.org/wiki/Police_ranks_of_the_United...

    Rank. Although the large and varied number of federal, state, and local police and sheriff 's departments have different ranks, a general model, from highest to lowest rank, would be: Chief of police / commissioner of police / superintendent / sheriff /Public Safety Director: The title commissioner of police is used mainly by large metropolitan ...

  8. Blue wall of silence - Wikipedia

    en.wikipedia.org/wiki/Blue_wall_of_silence

    The blue wall of silence, [1] also blue code[2] and blue shield, [3] are terms used to denote the informal code of silence among police officers in the United States not to report on a colleague 's errors, misconducts, or crimes, especially as related to police brutality in the United States. [4] If questioned about an incident of alleged ...

  9. Hospital emergency codes - Wikipedia

    en.wikipedia.org/wiki/Hospital_emergency_codes

    Code red: fire. Code yellow: internal emergency. MET call: a medical emergency that is not cardiac or respiratory arrest. Code pink: a mother is going into labor unexpectedly, or there is a newborn medical emergency. Victoria, Australia. Emergencies (Public Hospital services) Code Red - Fire/Smoke. Code Orange - Evacuation.