Article 26 Evidence

(1) At the request of the Arbitral Tribunal, the parties shall state the evidence on which they intend to rely, specifying what they intend to prove with each item of evidence, and present the documentary evidence on which they rely.

(2) The Arbitral Tribunal may refuse to accept evidence submitted to it if it considers such evidence to be irrelevant, non-essential or if proof can be established by other means which it considers more convenient or less expensive.

Article 27 Experts

(1) Unless otherwise agreed by the parties, the Arbitral Tribunal may appoint one or more experts to report to it on a specific issue.

(2) At the request of a party, the parties shall be given the opportunity to put questions to any such expert.