explanation, maybeLately I've noticed a black - medium blue - black, arranged horizontally auto tag on many vehicles in the area around Pittsburgh, Pennsylvania. Anyone know what this means?
John Evosevic, 3 July 2002
The Black-Blue-Black design is usually seen on a policeman's personal car or family members car. It stands for the "thin blue line". There is also a similar one with a red strip for firemen.
Jim Popovitch, 17 August 2002
The black-medium blue-black flag is actually a police mourning band. It is typically worn as a band across the badge when an officer is killed in the line of duty. I have seen it in use more frequently now as a bumper sticker, I believe this is probably a show of respect for the police officers killed on September 11th.
Troy Corwin, 26 September 2002