I was driving behind a car ("Driver 1"), and some numpty ("Numpty 1") pulled out from a turning and clipped the back of Driver 1's car. Nothing overly dramatic, just a prang. But I thought it was a bit idiotic, so I stopped to offer my support. And I have a dashcam in my car, which captured the whole sorry scene.
For some reason, although Numpty 1 seemed clearly at fault, he was arguing about it, and Driver 1 called the Police. It was all quite polite and friendly between Driver 1 and Numpty 1 - simply that Numpty 1 wasn't going to accept it was his fault, so they decided to ask the Police to arbitrate. (I actually got a bit narky with Numpty 1 for being such a numpty, but I should learn not to argue with idiots)
Anyway, the Police were called, and said the following:-
1. Contrary to a few people who say that dashcams are no use in Switzerland, the Police were very happy that I had the footage, and asked me to e-mail it to them. They effectively said that if the two drivers would continue to argue and waste everyone's time, the Police would likely settle it based on the dashcam footage.
2. The Police said that if it's just material damage (Sachschaden), you don't really need to call them - if the parties agree on the facts of the accident. If there are injuries etc, or if the parties don't agree, you can call them (but see 3. below)
3. However, the Police's actions this morning confirmed what one of my Swiss friends told me. Namely, if the Police are called to an accident, they will most likely find one of the drivers guilty of some infraction, and fine them. And that's exactly what happened today - they said they would fine Numpty 1 for not respecting the Give Way sign i.e. not respecting the Vortritt at that junction.
So the lesson I've drawn from this is that if you're a numpty and cause an accident, for heaven's sake just admit your mistake, complete the insurance forms, and get out of there. Because if the Police come along, you're likely to face a fine, as well as any other inconvenience etc you'll suffer because of the accident.