84ACreation of offences and changes in penalties

84A Creation of offences and changes in penalties (1) If a law makes an act or omission an offence, the act or omission is only an offence if done or not done after the law commences. (2) If a law increases the maximum or minimum penalty, or the penalty, for an offence, the increase applies only to an offence committed after the law commences.

(3) If a law reduces the maximum or minimum penalty, or the penalty, for an offence, the reduction applies to an offence committed before or after the law commences, but does not affect any penalty imposed before the law commences. law means an Act or subordinate law. provision of the Act or instrument (see s 7 and s 8).