So Beyonce played a gig in Houston last night, and protestors turned up.
Did the police take steps to ensure the protest remained peaceful?
Well, not really. It was the police who were protesting:
Members of the Coalition of Police and Sheriffs (Cops) stood a mile away from the NRG Stadium and shone a blue light towards the venue.This is "anti-police" in the sense of "how dare you criticise the behaviour of any police anywhere", of course. There's a lot of that about, and it doesn't really do anyone any good. If COPS (seriously? That's the name of your protest gang?) want to ensure that the police get the respect they deserve, they might want to think about shining their blue light in the other direction.
They were protesting about Beyonce's Formation video, which they claim is "anti-police".