I have a standard protocol about these things.
1) When the event happened did you make a complaint with the police ?
2)Did you disclose this event to anyone in authority?
3)Did you tell any acquaintances at the time?
4)Given the fact that you were young, did you make a report to any authority in the ensuing 5 years?
5) When the perpetrator started to become prominent in the community, did you make a report to any authority or to a media outlet?
6) Is there ANY corroborating documentation of any kind since the event?If you cannot answer "yes" to any of these questions, AND if you oppose the person in question politically, AND if this is the eve of the person's greatest honor, you have forfeited any credibility in this matter.
“3)Did you tell any acquaintances at the time?”
I believe that’s a big one in the legal system — “contemporaneous utterance” or something like that.