(1) An appeal lies to
the appropriate appellate court against a declaration that a defendant is
liable to supervision under Division 3A or Division 4 Subdivision 2 in the
same way as an appeal against a conviction.
(2) An appeal lies to
the appropriate appellate court against a supervision order in the same way as
an appeal against sentence.
(3) An appeal lies
with the permission of the court of trial or the appropriate appellate court
against a key decision by the court of trial.
(4) A "key decision"
is—
(a) a
decision that the defendant was, or was not, mentally competent to commit the
offence charged against the defendant; or
(b) a
decision that the defendant is, or is not, mentally unfit to stand trial; or
(c) a
decision that the objective elements of an offence are established against the
defendant.
(5) On an appeal, the
appellate court may exercise one or more of the following powers:
(a)
confirm, set aside, vary or reverse a decision of the court of trial;
(b)
direct a retrial of the case or an issue arising in the case;
(c) make
any finding or exercise any power that could have been made or exercised by
the court of trial;
(d) make
ancillary orders and directions.