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The thin blue line: The history behind the controversial police emblem - The San Diego Union-Tribune
The United States flag code prohibits alterations and desecrations of the flag. Why then are Thin Blue Line flags considered permissible? - Quora
![Controversial "thin blue line" flag replaces America's "Stars and Stripes" at Trump rally in Waukesha | Milwaukee Independent Controversial "thin blue line" flag replaces America's "Stars and Stripes" at Trump rally in Waukesha | Milwaukee Independent](http://www.milwaukeeindependent.com/wp-content/uploads/2020/10/102520_TrumpThinBlueFlag_01.jpg)
Controversial "thin blue line" flag replaces America's "Stars and Stripes" at Trump rally in Waukesha | Milwaukee Independent
![united states - Is the thin blue line on the stars and stripes considered desecration of the flag? - Law Stack Exchange united states - Is the thin blue line on the stars and stripes considered desecration of the flag? - Law Stack Exchange](https://i.stack.imgur.com/GChnj.png)