28.—(1) Where an appeal is made to the appropriate authority it may—
(a)appoint any person to exercise on its behalf, with or without payment, the function of determining the appeal; or
(b)refer any matter involved in the appeal to such person as the appropriate authority may appoint for the purpose, with or without payment.
(2) If the appellant so requests, or the appropriate authority so decides, the appeal shall be or continue in the form of a hearing.
(3) Schedule 6 shall have effect with respect to the procedure on any such appeal.