Migration Act 1958

a person who is a non‑citizen has, either before or after the commencement of this section, been convicted in Australia of an offence;

when the offence was committed the person was a non‑citizen who:

had been in Australia as a permanent resident:

for a period of less than 10 years; or

for periods that, when added together, total less than 10 years; or

was a citizen of New Zealand who had been in Australia as an exempt non‑citizen or a special category visa holder:

for a period of less than 10 years as an exempt non‑citizen or a special category visa holder; or

for periods that, when added together, total less than 10 years, as an exempt non‑citizen or a special category visa holder or in any combination of those capacities; and

the offence is an offence for which the person was sentenced to death or to imprisonment for life or for a period of not less than one year;