I agree 100% the rape must be reported with a police report and everything. possibly also make the victim take a lie detector test, if she doesn't know who the rapist was.
Actually, I'm involved in some of the fight against abuse agains women.
The lie detector is used as a tool against the criminal, not as a tool to harm the innocent.
At one of the workshops, we learned that in a nearby Texas college town, they are requesting that victims take a lie detector test, because the defense caves when they are informed of a reliable, supportive test.