If you don't speed much, they don't. The owner of the registration (license plate) gets an "anonymous ticket" and as long as you pay, they don't bother identify

If you don't speed much, they don't. The owner of the registration (license plate) gets an "anonymous ticket" and as long as you pay, they don't bother identifying the driver. If you don't pay, or if you drive significantly faster than allowed, the police starts an investigation to determine the driver, which starts by sending a form letter to the owner of the registration, asking them who drove the car. As far as I know it's a manual process, and I'm not sure the photo is actually used; the photo is mainly just proof in case people claim it wasn't them.