The Thin Blue Line. The Thin Red Line. Together these symbols of our great Police and Firefighters combine to create a striking wristband. We created these unique bracelets for Fire Fighters to show solidarity with Law Enforcement and for Police Officers to show unity with the men and women of Fire Departments. They can also be worn by citizens to show their support of the people on the front line protecting our country.public whilst the bottom represents the criminals. The idea behind the graphic is that law enforcement (the blue line) is what stands between the violence and victimization by criminals of the would-be victims of crime. Thin Blue Line items have become popular among law enforcement personnel, their families and supporters.