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  2. Police radio code - Wikipedia

    en.wikipedia.org/wiki/Police_radio_code

    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 status codes. These code types may be used in the same sentence to describe specific aspects of a situation. Codes vary by country, administrative subdivision, and agency.

  3. Emergency service response codes - Wikipedia

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

    Code 1: A time critical event with response requiring lights and siren. This usually is a known and going fire or a rescue incident. Code 2: Unused within the Country Fire Authority. Code 3: Non-urgent event, such as a previously extinguished fire or community service cases (such as animal rescue or changing of smoke alarm batteries for the ...

  4. List of civil defense sirens - Wikipedia

    en.wikipedia.org/wiki/List_of_civil_defense_sirens

    Tools. Tools. move to sidebar hide. Actions Read; ... Download QR code; Print/export Download as PDF; ... (siren) Federal Signal 3T22 / 2T22;

  5. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code. [ 1 ] The codes, developed during 1937–1940 and expanded in 1974 by the Association of Public-Safety Communications Officials-International (APCO), allow brevity and standardization of message traffic.

  6. Civil defense siren - Wikipedia

    en.wikipedia.org/wiki/Civil_defense_siren

    A civil defense siren is a siren used to provide an emergency population warning to the general population of approaching danger. Initially designed to warn city dwellers of air raids (air-raid sirens) during World War II, they were later used to warn of nuclear attack and natural disasters, such as tornadoes (tornado sirens).

  7. Vault 7 - Wikipedia

    en.wikipedia.org/wiki/Vault_7

    Vault 7 is a series of documents that WikiLeaks began to publish on 7 March 2017, detailing the activities and capabilities of the United States Central Intelligence Agency (CIA) to perform electronic surveillance and cyber warfare.

  8. The Shadow Brokers - Wikipedia

    en.wikipedia.org/wiki/The_Shadow_Brokers

    The Shadow Brokers (TSB) is a hacker group who first appeared in the summer of 2016. [1] [2] They published several leaks containing hacking tools, including several zero-day exploits, [1] from the "Equation Group" who are widely suspected to be a branch of the National Security Agency (NSA) of the United States.

  9. Standard Emergency Warning Signal - Wikipedia

    en.wikipedia.org/wiki/Standard_Emergency_Warning...

    The Standard Emergency Warning Signal (SEWS) is a warning siren used in Australia to alert the public of danger. The siren is played over radio, television or public address systems in public places to warn of bushfire , flood , cyclone , tsunami , earthquake or terrorist attack .