What is the name for the provision in many contemporary rape laws that establishes necessary difference in the ages of rapist and victim?
My understanding is that many states now decline to call consensual sex 'statutory rape' if, say, a 17 year old HS football star & 15 year old cheerleader g-friend do 'what comes naturally'. The states do this by setting a certain number of years (5?) which must be the difference between 'rapist' and victim in such a case -- so that the 20 year old wooing the 15 year old girl is still prosecutable, but not the slightly older boyfriend. Is there a standard name for such a statutory provision?