If they want people to take them seriously, they shouldn't use that phrase. The first time I heard it was in 1995 was when they were protesting for Mumia Abu Jamal, the black Muslim cop killer who was almost executed that year. They don't care if the perpetrator is a policeman or a criminal attacking a policeman. They only care about the color of someone's skin. So they support a black murderer that killed a white Irish policeman with the same phrase they use to support someone who was a victim of what they claim is police brutality.