(1) Where, under this section, a relationship between an affected person and another person is to be deduced in accordance with this subsection, the relationship between the affected person and -

(a) his or her father and mother shall, subject to section 27A of this Act, be determined in accordance with section 3 of the Act of 1987, and

(b) his or her social father and social mother shall, subject to section 27A of this Act, be deemed, respectively, to be the same as the relationship between the affected person and his or her father and mother,

and all other relationships shall be determined accordingly.

(2) Without prejudice to the generality of subsection (1) -

(a) where the relationship between an affected person and another person is to be deduced in accordance with that subsection, this Act shall be construed as follows -

(i) a reference, other than in section 4A, to the father of an affected person shall be construed as including a reference to both the father and the social father of the affected person,