Sch 5A para 16
(1) The Scottish Ministers may (in accordance with paragraph 17) make, or alter, a scheme if— (a) they have given a planning authority a direction under paragraph 6, and (b) they are satisfied that the planning authority are not fulfilling the duty arising from that direction within a reasonable period. (2) In order to satisfy themselves of the matter mentioned in sub-paragraph (1)(b), the Scottish Ministers must cause a local inquiry or other hearing to be held by a person appointed by them.