547. Appointment of experts, legal advisers and assessors by the arbitral tribunal.

Unless otherwise agreed by the parties1, the arbitral tribunal2 may appoint experts or legal advisers to report to the tribunal and the parties, or appoint assessors to assist the tribunal on technical matters; and it may allow any such expert, legal adviser or assessor to attend the proceedings3. The parties must be given a reasonable opportunity to comment on any information, opinion or advice offered by any such person