3.—(1) In deducing any relationship for the purposes of this Act or of any Act of the Oireachtas passed after the commencement of this section, the relationship between every person and his father and mother (or either of them) shall, unless the contrary intention appears, be determined irrespective of whether his father and mother are or have been married to each other, and all other relationships shall be determined accordingly.

(2) (a) An adopted person shall, for the purposes of subsection (1) of this section, be deemed from the date of the adoption to be the child of the adopter or adopters and not the child of any other person or persons.

F1[(b) In this subsection ‘adopted person’ means a person who has been adopted under an adoption order within the meaning of section 3 (1) of the Adoption Act 2010 or, where the person has been adopted outside the State, whose adoption is recognised by virtue of the law for the time being in force in the State.]