Düsseldof and now my home state of Bremen (the smallest city state of germany) have recently asked their state owned public transport company to no longer bring these cases to the police.[1]
Sadly it's federal law so our local government can't change it, but at least this will keep people from going to prison in our small state.
This law is actualy a remnant from Nazi Germany, and the german equivalent of last week tonight also reported on it.[2]
1: https://www.weser-kurier.de/bremen/politik/schwarzfahrer-sol...