(1) Subject to this section, a prosecution for an offence against this Act or the regulations may be instituted at any time within 5 years after the commission of that offence.
(2) A prosecution of a person for an offence against section 234, 236 or 243 that is alleged to have been committed after the commencement of this subsection may be instituted at any time.
(3) A prosecution for an offence:
(a) against section 232A, 233 or 233A of this Act as in force before the commencement of this subsection; and
(b) alleged to have been committed after the commencement of the Migration Legislation Amendment Act (No. 1) 1999 ;
may be instituted at any time.
(4) A prosecution for an offence against section 233A, 233B, 233C, 233D, 233E or 234A that is alleged to have been committed after the commencement of this subsection may be instituted at any time.