13. (1) Subject to subsection (2), Parts II and IV do not apply to a person's conviction of an offence if the person was convicted of the offence before the commencement of this Act.
(2) Subsection (1) does not apply in relation to interstate forfeiture orders, interstate pecuniary penalty orders or interstate restraining orders.
(3) Subject to subsection (1) this Act applies to—
(a) an offence committed, or believed to have been committed, at any time (whether before or after the commencement of this Act); and
(b) a person's conviction at any time of an offence (whether before or after the commencement of this Act).