It happens every Mayday. Because it is an annual event, the police are ready for it, all dressed up in their full riot gear.
This year they did not disappoint. On Friday, May 1st about 12,000 people gathered for the Labor Parade. Approximately 200 of the protestors wore masks and were obviously up to no good. A small riot ensued. It was immediately quieted and around 30 people were arrested.
Does anyone else find it humorous that the Swiss schedule their riots?