Absolutely — many of these situations are actually illegal to be handled internally. In the USA, clergy and other leaders are considered mandatory reporters in many states, and the failure to report to law enforcement is a huge issue.
There are resources to guide untrained clergy and lay leaders through this process however, so they don’t have to do it blind. I have two books on this, as well as a sample policy for handling sexual misconduct - on my WILD website.
It’s important for pastors to recognize that DV and sexual predation isn’t their area of expertise, and to defer to professionals trained in these areas instead of playing God and trying to handle it all themselves, too.