54—Person may be joined as party
(1) The Tribunal may order that a person be joined as a party to proceedings before the Tribunal if the Tribunal considers that—
(a) the person should be bound by, or have the benefit of, a decision of the Tribunal in the proceedings; or
(b) the person's interests are affected by the proceedings; or
(c) for any other reason it is desirable that the person be joined as 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 notice to the person to whom the order relates.