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  2. Public Warning System (Singapore) - Wikipedia

    en.wikipedia.org/wiki/Public_Warning_System...

    The Public Warning System (PWS) is a network of civil defense sirens installed by the Singapore Civil Defence Force on over 2,000 strategic points in Singapore to warn Singaporeans of impending dangers, air raids and atomic bomb blasts. Thus far, the siren network has only been used for occasional public awareness drills, monthly noon chimes ...

  3. Civil defense siren - Wikipedia

    en.wikipedia.org/wiki/Civil_defense_siren

    A public warning system siren in Singapore. Singapore currently has a network of 284 stationary sirens named the Public Warning System which warns the entire country of air raids, as well as human-made and natural disasters (except earth tremors). Singapore's sirens are tested at noon on the first day of every month.

  4. DEFCON - Wikipedia

    en.wikipedia.org/wiki/DEFCON

    DEFCON. The defense readiness condition (DEFCON) is an alert state used by the United States Armed Forces. [1][2] For security reasons, the US military does not announce a DEFCON level to the public. [1] The DEFCON system was developed by the Joint Chiefs of Staff (JCS) and unified and specified combatant commands. [3]

  5. Total Defence (Singapore) - Wikipedia

    en.wikipedia.org/wiki/Total_Defence_(Singapore)

    Total Defence is Singapore 's whole-of-society national defence concept, based on the premise that every aspect of society contributes to the collective defence of the state. The strategy was first introduced in 1984 and adopted from the national defence strategies of Sweden and Switzerland. It initially consisted of five key tenets; military ...

  6. Capital punishment in Singapore - Wikipedia

    en.wikipedia.org/.../Capital_punishment_in_Singapore

    Changi Prison, where Singapore's death row is located Capital punishment in Singapore is a legal penalty. Executions in Singapore are carried out by long drop hanging, and usually take place at dawn. Thirty-three offences—including murder, drug trafficking, terrorism, use of firearms and kidnapping —warrant the death penalty under Singapore law. In 2012, Singapore amended its laws to ...

  7. Earthquake early warning system - Wikipedia

    en.wikipedia.org/.../Earthquake_early_warning_system

    Earthquake early warning system. An animation detailing how earthquake warning systems work: When P waves are detected, the readings are analyzed immediately, and, if needed, the warning information is distributed to advanced users and cell phones, radio, television, sirens, and PA systems / fire alarm systems before the arrival of S waves.

  8. Singapore Police Force - Wikipedia

    en.wikipedia.org/wiki/Singapore_Police_Force

    The Singapore Police Force was founded in 1820, starting with just 11 men under the command of Francis James Bernard, the son-in-law of William Farquhar. [10] With no background nor knowledge on policing, Bernard had to work from scratch, as well as occasionally turning to Farquhar for help.

  9. Early warning system - Wikipedia

    en.wikipedia.org/wiki/Early_warning_system

    An early warning system is a warning system that can be implemented as a chain of information communication systems and comprises sensors, event detection and decision subsystems for early identification of hazards. They work together to forecast and signal disturbances that adversely affect the stability of the physical world, providing time ...