Generally, yes. The prosecution needs a witness that observed the crime to testify against the perpetrators. The police are not permitted to testify as to what your daughter tells them as such statements are hearsay. If the perpetrators decide to accept some sort of plea offer, it is possible that your daughter's testimony may not actually be needed, or, if one of the perpetrators testify against the rest, then your daughter's testimony may not be needed. However, if the perpetrators fight the case and there were not other witnesses to testify as to what happened, the case would rely on your daughter.
The responses provided on this site are intended for informational purposes only and should not be construed as providing legal advice regarding an individual situation. No attorney-client relationship is created between the reader and JD Law, P.C.