3. Where, immediately before the commencement of Parts II and III, there was in force—N.I.
(a)a declaration under Article 45(3) of the Matrimonial Causes (Northern Ireland) Order 1978F1 (declaration by court that party to marriage unfit to have custody of children of family); or
(b)an order under section 12 of the Criminal Law Amendment Act 1885F2 or section 1(4) of the Punishment of Incest Act 1908F3 divesting a person of authority over a girl;
the declaration or, as the case may be, the order shall cease to have effect on the commencement of those Parts.