Criminal Procedure Act 1986 No 209
Current version for 1 July 2020 to date (accessed 8 August 2020 at 23:07)
153   Guilty plea to offence not charged
(1)  If an accused person—
(a)  is arraigned on an indictment for an offence, and
(b)  can lawfully be convicted on the indictment of some other offence not charged in the indictment,
he or she may plead “not guilty” of the offence charged in the indictment, but “guilty” of the other offence.
(2)  The Crown may elect to accept the plea of “guilty” or may require the trial to proceed on the charge on which the accused person is arraigned.