Section 21: Application of Part III.

(1) This Part shall apply to the exercise of the jurisdiction of the Supreme Court to hear appeals in civil cases.
(2) Where in the exercise by the Court of Appeal of its jurisdiction an interlocutory order or decision is made in the course of any suit or matter an appeal shall, by leave of that Court or of the Supreme Court, as the case may be, lie to the Supreme Court; but no appeal shall lie from any order made ex parte, or by consent of the parties, or relating only to costs.
(3) Nothing in subsection (2) of this section shall be construed so as to authorise an application to the Supreme Court in the first instance for leave to appeal from an interlocutory order or decision made in the course of any suit or matter brought in the Court of Appeal.