(1) Where a Member State, the Community, or a person considers that it or him or her has a substantial interest of a legal nature which may be affected by a decision of the Court in the exercise of its original jurisdiction, it or him or her may apply to the Court to intervene and the Court shall decide whether to allow the application.
(2) The Court shall have the power to prescribe any interim measures to reserve the right of a Party if it considers the circumstances of the case so require.
(3) The Court shall have the same power as the Supreme Court to make any order for —
(a) the purpose of securing the attendance of any person;
(b) the discovery or production of any document; or
(4) A judge of the Court may exercise all of the powers and functions of a superior court judge of the Supreme Court.
(5) Without affecting subsection (1), any judgment of a judge under this section may be varied, discharged or reversed by the Court consisting of five judges.
(6) The Court shall, in relation to any appeal to it in any case, have all the jurisdiction and powers possessed in relation to that case by the Court of Appeal.