(1) The Tribunal may order that a person be joined as a party to a proceeding if the Tribunal considers that:
(a) the person should be bound by, or have the benefit of, a decision of the Tribunal in the proceeding; or
(b) the person's interests are affected by the proceeding; or
(c) it is desirable for any other reason for the person to be a party.
(2) The Tribunal may make an order under this section:
(a) on the application of any person or on its own initiative; and
(b) without the person whom it is proposed to join being heard on the matter.