(d) The testimony of witnesses may, either at the choice of a party or as directed by the Tribunal, be submitted in written form, whether by way of signed statements, sworn affidavits or otherwise, in which case the Tribunal may make the admissibility of the testimony conditional upon the witnesses being made available for oral testimony.
(e) A party shall be responsible for the practical arrangements, cost and availability of any witness it calls.
(f) The Tribunal shall determine whether any witness shall retire during any part of the proceedings, particularly during the testimony of other witnesses.
Experts Appointed by the Tribunal