(1)  In this section,

decision includes a determination, a declaration and a finding.

(2)  An appeal lies to the Court of Criminal Appeal at the suit of the Attorney-General or the defendant from a decision or order made by the Supreme Court under this Part.

(3)  On an appeal, the Court of Criminal Appeal may affirm or quash the decision or order against which the appeal is brought or substitute any other decision or order as it thinks proper.