(1) This section applies if a child is:
(a) a child of a person under section 60H or 60HB of the Family Law Act 1975 ; and
(b) either:
(i) a child of the person's spouse or de facto partner under that section; or
(ii) a biological child of the person's spouse or de facto partner.
(2) The child is taken for the purposes of this Act:
(a) to be the child of the person and the spouse or de facto partner; and
(b) not to be the child of anyone else.