I looked out of the window about an hour ago and there was an armed policeman outside my window.
By the time I got to the window to look more closely, another four had appeared and, along with someone dressed in a fluorescent jacket (think one of the men who works in the park), went through the gate into the park next door.
Mysterious! I'm intrigued. I had to go and fetch the boys at this point. All was quiet when I went outside and no sign of any excitement when we got back.
As you can see from their backs, the police are called die Polizei or Schmiär/Tschuggerej, and a policeman - ein Polizist - Landjegär, Tschuggär, Schürgä.