Blue Dude 

Slang for: Police officer. Police in the USA usually wear a distinctive dark blue uniform.

The blue dudes were scoping tight yesterday.

Blue Dude by Robert Anderson April 28, 2006

Red & Blue Dudes 

Street Slang used by many to replace the word Police.

Originated in 2005 in Bronx, New York
The name was given after the Colors on Police car Sirens.

"Hide the weed, It's The Red & Blue Dudes!"

Red & Blue Dudes by XqUiSiT3 October 28, 2005