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  2. Police code - Wikipedia

    en.wikipedia.org/wiki/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 other ...

  3. Thin blue line - Wikipedia

    en.wikipedia.org/wiki/Thin_blue_line

    The blue line symbol. The " thin blue line " is a term that typically refers to the concept of the police as the line between law-and-order and chaos in society. [1] The "blue" in "thin blue line" refers to the blue color of the uniforms of many police departments. The phrase originated as an allusion to The Thin Red Line incident during the ...

  4. 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 ...

  5. 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 ...

  6. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    The ten-codes used by the New York Police Department have returned to public attention thanks to the popularity of the television series Blue Bloods. However, the ten-codes used by the NYPD are not the same as those used in the APCO system. For example, in the NYPD system, Code 10-13 means "Officer needs help," whereas in the APCO system ...

  7. Aerial roof markings - Wikipedia

    en.wikipedia.org/wiki/Aerial_roof_markings

    Aerial roof markings are symbols, letters or numbers on the roof of selected police vehicles, fire engines, ambulances, coast guard vehicles, cash-in-transit vans, buses and boats to enable aircraft or CCTV to identify them.

  8. List of police-related slang terms - Wikipedia

    en.wikipedia.org/wiki/List_of_police-related...

    Blue Force US slang term for the police, mainly used in Florida. [citation needed] Blue Heeler Australian slang term, particularly in rural areas, in reference to the blue appearance and traits of the Blue Heeler Australian Cattle Dog. Blue Heelers was a long-running Australian police television drama series. Blue Light Special

  9. List of emergency telephone numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_emergency...

    Text phone – 0800 81 12; Non-emergency police – 0900 88 44[a]or 0343 578 844;[66]Non-emergency police (text phone) – 0900 18 44; Suicide prevention – 113; Animal emergency – 144; Child abuse – 0900 123 12 30;[a]Anti-bullying hotline – 0800 90 50. North Macedonia. 192or 112[b] 194or 112[b]