シン・ブルー・ライン シンブルーライン
The concept of [[police]] as "the line that prevents society from descending into violent chaos." The "blue" in "Thin Blue Line" refers to the blue color of many [[police uniform|police department uniforms]].

As a symbol the concept is represented as a literal thin blue line and is usually overlaid atop a black and white version of a country or state's flag. 

h4. See also

* "Wikipedia - Thin Blue Line":[https://en.wikipedia.org/wiki/Thin_blue_line]
thin blue line