In sections 12.1-20-03 through 12.1-20-08:
1. When criminality depends on a child being below the age of fifteen, it is no defense that the actor did not know the child's age, or reasonably believed the child to be older than fourteen.
2. When criminality depends on the victim being a minor, it is an affirmative defense that the actor reasonably believed the victim to be an adult.
3. When criminality depends on the victim being a minor fifteen years of age or older, the actor is guilty of an offense only if the actor is at least three years older than the minor.
4. When criminality depends on the victim being below the age of fifteen, and the actor is a minor, the actor is guilty of an offense only if the actor is at least three years older than the victim.