For assault, it's the military justice system. For harassment, I've seen various approaches. I've seen in some environments.... I have an example in mind from the navy in which the very high-ranked officer was taking it very seriously, was receiving every day every report and wanted to make sure that the victims were looked after and that the perpetrators were not left alone. In other instances, I've seen pure denial.
It's a very large family. Consistency would be advisable.