Not gonna comment on the choice of method for the intervention but I have a feeling this gang's members can probably be seen saying things like "immigrants fock up our country mate" and then go eat in an Indian restaurant.

Yutes on bikes?

While I don't like these bike gangs, what the police was doing is reckless. I would argue the guy on the quad just feared for his life, because the spikes could have caused an accident. So he did the safe thing and went around them, and the cop just happened to be jaywalking there.