Originates in a parking garage in Amsterdam where the top floor is full of CLEAN prostitutes. Today it is slang for where prostitutes in cities really congregate and work the blocks.
WE got a 560 in the red light district, apparently an officer was in a gas station and a prostitute aproached him and when he tried to arrest her she shot at him.
the big red light district is amsterdam sex cinemas gay cinemas for guys only prostitute houses and red lights everywhere girls in glow in the dark outfits ppl tryin to pick up any one clubs and more clubs and red lights out side the houses basically mean some prostitute is workin