A person is guilty of predatory sexual assault against a child when, being eighteen years old or more, he or she commits the crime of rape in the first degree, criminal sexual act in the first degree, aggravated sexual abuse in the first degree, or course of sexual conduct against a child in the first degree, as defined in this article, and the victim is less than thirteen years old.

Predatory sexual assault against a child is a class A-II felony.