Police lights in the UK are blue only, unlike in the USA where they are blue on one side of the car and red on the other.
BLUE.
Police lights are the red and blue lights that use in an emergency. It was invented by a Superintendent of Signals for the Police Department of Detroit in 1920.
All UK lights go as follows: ... GREEN AMBER RED RED and AMBER GREEN ... NOTE: AMBER is a colour very close to orange, usually called YELLOW in the US.
Chicago is famous for having only Blue lights on its police cars
It depends on the Country. For example UK they are Blue, Spain they are Orange, In the US normally Red and White. Though Spain are are going to be changing the colour to match most of Europe, blue.
Police sirens
Red
Gold
Police should not speed if there not chasing anyone or if there lights are not on or there sirens are not on
A police car can generally follow you anywhere you can drive, warning lights on or otherwise.
There are many places that you can purchase police strobe lights. Many of them have different styles that you can choose from. Amazon and Speed Tech Lights are just a couple of places you can find these lights.
I think that its called Colour ID