Back on RAMD another loose cannon, She Who Must Never Be Named, also used to post accusations. And I recall some of the more patient posters would tell her that she should take this to the police. But a problem, statute of limitations aside, is that what jurisdiction did the assault occur? Jurisdiction is important as that is where any crime will be investigated & potentially prosecuted. I couldn't tell you what school we were at 30+ years ago, and that could be a problem w/r/t criminal prosecution.
I suggest that DCI hire someone to figure out which jurisdiction has the strongest reporting laws, and then adopt these as the DCI standard. If something happens in a less-strict jurisdiction (not sure if that is the correct term), it gets reported anyway. Then it becomes something the local justice system to resolve. Obviously, any incident should also go through reporting to DCI, & get fixed by the Corps. But by doing this, from a legal standpoint, the Corps should be in the clear - It happened, we reported it. We fixed the problem internally, anything criminal-justice will happen separately in the appropriate jurisdiction.