(1) An appeal lies to the High Court against a judgment or order of lower court exercising jurisdiction under this Act.
(2) Except with the leave of the Court of Appeal, an appeal does not lie to the Court of Appeal against a judgment or order of a single judge of the High Court in the exercise of its jurisdiction to hear and determine appeals from decisions or directions of the Registrar.
(3) With the special leave of the High Court, an appeal lies to the High Court against a judgment or order referred to in subsection (1).
(4) Except as otherwise provided by this section, an appeal does not lie against a judgment or order referred to in subsection (1).