Looks like his eyelids are hanging way low the first half. Incoherent lash out. Is he holding a passport?

I’d say it’s cocaine or similar.

Is this a problem? I dont use reddit and like seeing (proven) interesting posts here?

looked like an unorganized charge though. Germany has (unfortunately) laws against demonstrating when police said its go home time. So they just pick individuals and book them for the night. With a few (unlawful) bonks on the head.