2. If your friend is sure to report such a thing, before that, consider whether his leader has enough rights and contacts to deal with it, even regardless of the relevant departments. If so, don't get involved, just consider yourself bitten by a dog. As a human being, you can't bite dogs, too. If you don't want to, then you can report it, although it may not be meaningful. In addition, see if there are any opponents or people with problems, and give the evidence to each other.