Regarding mandatory reporting laws:
I have many a friend who never met his grandfather because the “mandatory reporters” of the day, called the Yevsektzia, turned their grandfathers in for crimes like baking matzos.
There was also a story of a “mandatory reporter” in Europe or Canada who was either an anti-Semite or a self-hating Jew. He turned in a frum couple after their child fell and broke an arm or a leg. He ruined the family, and only years later were they cleared.
On the other hand, we need to deal with the Mondrowitzes and Kolkos very decisively. But even when we do, as was the case with one monster turned in by a principal of a moisad in California, the justice system fails us and they’re let out after short sentences.