Our thin blue line flag from United States Flag Store is used by police officers to symbolize their role as the protectors of civilians from criminals and to commemorate fallen law enforcement officers. The blue stripe represents law enforcement, the top black stripe represents the public and the bottom black stripe represents the criminals.

The blue line at the center conveys that it is the police that separate the public from wrongdoers. That's why it's also a flag waved by the public to show support for law enforcement. Our 3-foot by 5-foot thin blue line flags are premium-quality printed polyester flags finished with sturdy headers and brass grommets.