French
DeutschRecognition signal
A recognition signal is a signal whereby a person, a ship, an airplane or something else is recognized. They can be used during war or can be used to help the police recognize each other during undercover operations.
War
[edit]These signals are often used to recognize friends and enemies in a war.[1][2] For military use these signals often use colored lights or the International marine signal flags.
Police
[edit]Other uses of the signal include the police who sometimes use a recognition signal so that officers in uniform can recognize officers in normal clothing (undercover).[3][4] The NYPD often use headbands, wristbands or colored clothing as recognition signals which are known as the "color of the day".[4]
See also
[edit]References
[edit]- ^ Commander-in-Chief High Sea Fleet (German navy. "German Navy Tactical Orders (Enemy Recognition Signals)". Retrieved 2009-02-18.
- ^ "Visual signals: Military communication without words". HPRC. Retrieved 2022-02-10.
- ^ James, George (24 August 1994). "Police Agencies Share Rules for Recognition". New York Times. Retrieved 2008-09-17.
- ^ a b Krauss, Clifford (24 August 1994). "Subway Chaos: Officer Firing at Officer". New York Times. Retrieved 2008-10-05.
External links
[edit]
Wikimedia Commons has media related to International Code of Signals.