Section 4(1)(a): amended, on 1 January 1971, by section 6 of the Age of Majority Act 1970 (1970 No 137).
Section 4(1)(b): amended, on 1 January 1971, by section 6 of the Age of Majority Act 1970 (1970 No 137).
Section 4(5): amended, on 1 July 2005, by section 151 of the Care of Children Act 2004 (2004 No 90).
Section 4(5): amended, on 1 April 1980, pursuant to section 12 of the Judicature Amendment Act 1979 (1979 No 124).