This guy has been arrested on june the 16th during the 'Greenwash or Us' Street Party for "not moving" and/or for "asking why". You can see how the two cops arresting him are not giving answers to those asking why was that guy been arrested.
One of the agent is covering his badges when the camera approaches him and he says: "Get out of my face!" while another cop approach the guy who's filming telling him :"hey, uv been warned ok!?"... apparently the "get out of my face" has now became a police warning... the filming guy was then told that he was obstructing their duty (wonder why was covering his badges then!).
The guy was finally "gently" handcuffed and taken away...