http://www.austlii.edu.au/au/legis/cth/consol_act/ma1958118/s501.html
MIGRATION ACT 1958 - SECT 501
Refusal or cancellation of visa on character grounds
Decision of Minister or delegate--natural justice applies
(1) The Minister may refuse to grant a
visa to a person if the person does not satisfy the Minister that the person passes the character test.
Note:
Character test is defined by subsection (6).
(2) The Minister may cancel a
visa that has been granted to a person if:
(a) the Minister reasonably suspects that the person does not pass the character test; and
(b) the person does not satisfy the Minister that the person passes the character test.
Character test
(6) For the purposes of this section, a person does not pass the
character test if:
(a) the person has a substantial criminal record (as defined by subsection (7)); or
(aa) the person has been convicted of an offence that was committed:
(i) while the person was in
immigration detention; or
(ii) during an escape by the person from
immigration detention; or
(iii) after the person escaped from
immigration detention but before the person was taken into
immigration detention again; or
(ab) the person has been convicted of an offence against
section 197A; or
(b) the person has or has had an association with someone else, or with a group or organisation, whom the Minister reasonably suspects has been or is involved in criminal conduct; or
(c) having regard to either or both of the following:
(i) the person's past and present criminal conduct;
(ii) the person's past and present general conduct;
the person is not of good character; or
(d) in the event the person were allowed to
enter or to
remain in Australia, there is a significant risk that the person would:
(i) engage in criminal conduct in Australia; or
(ii) harass, molest, intimidate or stalk another person in Australia; or
(iii) vilify a segment of the Australian community; or
(iv) incite discord in the Australian community or in a segment of that community; or
(v) represent a danger to the Australian community or to a segment of that community, whether by way of being liable to become involved in activities that are disruptive to, or in violence threatening harm to, that community or segment, or in any other way.
Otherwise, the person passes the
character test .
Substantial criminal record
(7) For the purposes of the character test, a person has a
substantial criminal record if:
(a) the person has been
sentenced to death; or
(b) the person has been
sentenced to
imprisonment for life; or
(c) the person has been
sentenced to a term of
imprisonment of 12 months or more; or
(d) the person has been
sentenced to 2 or more terms of
imprisonment (whether on one or more occasions), where the total of those terms is 2 years or more; or
(e) the person has been acquitted of an offence on the grounds of unsoundness of mind or insanity, and as a result the person has been
detained in a facility or institution.
So basically to be deported, he'd need to be convicted and sentenced to prison for 2 years or more (which won't happen), or the Minister needs to consider because if his conviction he is not of good character (which also won't happen).
