Blue Lives Matter

UW-Madison Police Chief Kristen Roman said the flag has been "co-opted" by extremists with "hateful ideologies"

Commissioner Dermot Shea tweeted that the behavior of the officer was “One hundred percent unacceptable. Period.”

“When we put on this uniform, we are apolitical,” Chief of Department Terence Monahan said. “We have no stance in one way or another"

Marchers on Wednesday night were calm and peaceful following Tuesday night's fatal shootings

The flag, given to the sheriff's office by the Weymouth Police Department, was raised in a ceremony on Monday

Chief Glenn Olsson said the controversy over the fire department's flying of the flag partly contributed to his decision to retire

A citizen complaint about the flags prompted Hingham's police and fire chiefs to ask for the flags' removal

The Department of Transportation threatened the artist with summonses or worse if he doesn't remove a blue line painted on a road divider

The flags were originally purchased and flown on the firetrucks to show support for a fallen police officer

Most of the killings tragically involve a definable list of deadly tactical errors

Chief Bill Scott told officers he considered the masks a "meaningful expression," but worried that some may see them as "divisive and disrespectful"

The 14-foot-tall mural, which bears images of a lion, a badge and the Thin Blue Line flag, was commissioned to honor police work and boost morale

The book is the second in a trilogy examining actual line-of-duty events that have ended the lives of law enforcement officers in Los Angeles County