<P> The Thin Blue Line is a phrase and symbol used by law enforcement . The phrase refers figuratively to the position of law enforcement in society as a bulwark between order and anarchy . The symbol depicts a thin blue line, representing law enforcement, against a black background, and is commonly used to express solidarity with police, to commemorate policemen who have perished in the line of duty, and to symbolize the relationship of law enforcement with the community as the protectors of the community from criminals and victimization . </P> <P> The term began as an allusion to the famous Thin Red Line . The symbol's origins are not certain, but it is now prevalent in the United Kingdom, United States, Canada, Australia, Germany, Belgium, Switzerland, and Poland . </P>

What is the black us flag with blue stripe