Former NYPD officer has flown a version of the 'thin blue line' flag for a decade. Now the HOA is demanding it be removed. What's the law? Our expert weighs in.

Signed, L.S. A man holds a thin blue line flag at a rally in Topeka ... imagine a regular American flag, but remove the red line from the right of the starfield and the white and red line below ...

To describe your flag to readers, imagine a regular American flag, but remove the red line from the right ... It is more common to see thin blue line flags that are black and white other than ...