(1) A person commits the offense of unauthorized entry in a dwelling in the first degree if the person intentionally or knowingly enters unlawfully into a dwelling and another person was, at the time of the entry, lawfully present in the dwelling who:
(a) Was sixty years of age or older and the age of the person lawfully present in the dwelling was known or reasonably should have been known to the person who unlawfully entered;
(b) Was an incapacitated person; or
(c) Had a developmental disability.
(2) For the purposes of this section:
"Developmental disability" shall have the same meaning as in section 333E-2.
"Incapacitated person" shall have the same meaning as in section 560:5-102.
(3) Unauthorized entry in a dwelling in the first degree is a class B felony.
(4) It shall be an affirmative defense that reduces this offense to a misdemeanor that, at the time of the unlawful entry:
(a) There was a social gathering of invited guests at the dwelling the defendant entered;
(b) The defendant intended to join the social gathering as an invited guest; and
(c) The defendant had no intent to commit any unlawful act other than the entry.