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What is the reason why police lights are color blue and red?
asked Jul 26, 2010 by triuser (1,751 points)

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As we know that blue and red are the two clours which have least wave length as compare to other colours.because of the least wave length they can easily view from a very long distance and thief ran away by seeing this and help seeker get happy instantly
answered Aug 12, 2010 by trianswer (22,754 points)
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police lights are color blue and red for following reason :

Volunteers use blue lights

Blood red is hard wired in humans as an alert & danger signal.

Red in particular is a color that invokes emotion, in the very situation where you don't want people to respond with emotion.
answered Aug 12, 2010 by trianswer (22,754 points)
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  Police lights are color blue and red for following reason : red is the alert and danger signal. Red and Blue color is the highly visible from a long distance. If anyone falls in danger if he see a red color then he calls the police to the help.
answered Apr 25, 2012 by nislam1877 (106 points)

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