(1) At any stage of a proceeding in a matter arising under this Act, a single Judge exercising the jurisdiction of the Federal Court:
(a) may refer a question of law for the opinion of a Full Court; and
(b) may, of the Judge's own motion or on the application of a party, refer the matter to a Full Court to be heard and determined.
(2) If a Judge refers a matter to a Full Court under subsection (1), the Full Court may have regard to any evidence given, or arguments adduced, in the proceeding before the Judge.
(3) This section applies in addition to, and does not affect the operation of, section 339A.