The motto ‘Thin Blue Line’ was born in December 2014 and was assumed by the Blue Lives Matter movement, which shares the same imaginary. This movement is a police movement related to white U.S. nationalists to face the Black Lives Matter movement. The team apologizes for police work, minimizing cases of violence and exerting lobbying and pressure. However, extreme right-wing violent groups have used this slogan in the United States.
The motto Blue Lives Matter created the controversy in March of last year, as at ETB an ertzaina wore a t-shirt from the team.
In the emptying that took place in Gros, the Ertzaintza faced a number of citizens beating at the edge. Meanwhile, a journalist from Irutxuloko Hitza who was reporting the news was beaten leaving a mark on his thigh.