Section 231: replaced, on 1 October 2003, by section 15 of the Crimes Amendment Act 2003 (2003 No 39).
Section 231(1)(a): amended, on 1 July 2013, by section 6 of the Crimes Amendment Act (No 4) 2011 (2011 No 85).
Section 231(1)(b): amended, on 1 July 2013, by section 6 of the Crimes Amendment Act (No 4) 2011 (2011 No 85).