(3) Where oral evidence is given in a language other than English, such evidence shall be accompanied by simultaneous interpretation into English. Rule 23: Objection as to Jurisdiction (1) The Tribunal shall have jurisdiction to hear and determine any matter in accordance with Article 32 of the Treaty, namely, disputes:(a) arising from an arbitration clause contained in a contract or agreement which confers such jurisdiction to which the Community or any of its institutions is a party; or (b) arising from a dispute between the Partner States regarding the Treaty, if the dispute is submitted to it under a special agreement between the Partner States concerned; or (c) arising from an arbitration clause contained in a commercial contract or agreement in which the parties have conferred jurisdiction on the Court. (2) The Tribunal shall have power to decide on an objection that it has no jurisdiction, including any objection concerning to the existence or validity of the arbitration agreement, and its decision shall be final. (3) An objection that the Tribunal does not have jurisdiction shall be raised not later than in the Statement of Defence or, with respect to a counterclaim, in the reply to the counterclaim. (4) An objection that the Tribunal is exceeding the scope of its jurisdiction, shall be raised as soon as the matter alleged to be beyond the scope of its jurisdiction is raised during the arbitral proceedings. (5) The Tribunal may, in either of the cases referred to in sub-rule (3) or (4), admit a late objection if it considers the delay justified. (6) The Tribunal shall rule on an objection:(a) to its jurisdiction as a preliminary question; (b) concerning the existence or validity of an arbitration agreement either as a preliminary question or the Tribunal may, in exceptional circumstances, proceed with the arbitration and rule on such objection in its final award. 11