Legal Question in Criminal Law in Minnesota

Re: Under-age Rape

I am not certain that I understand the question. If the assailant forced her to have sexual contact, she should report it to law enforrcement who will investigate the matter and a decision will be made whether or not to charge the person with a crminal offense. That will depend entirely on the strength of the case. The longer you sister waits to report it, the weaker the case may become from a prosecution perspective.

As a victim, your sister would be infomred of the proceedings and correspond with a victim's advocate.

Re: Under-age Rape

Based upon the information in your question, it is unclear whether you believe there was a forcible rape (as opposed to so-called "statutory rape" based merely on age).

In any event, if a person claiming to have been raped delays reporting it, this will reduce the chances of a successful police investigation and prosecution. Generally, a rape victim can preserve evidence by going to a hospital emergency room, or similar place, for a medical examination often including what is called a "rape kit" by a nurse experienced in rape cases. Then the rape victim can follow up with police (though this might already be set in motion by the medical staff in some cases).

In light of her being a juvenile, an adult could report the alleged rape on her behalf.