6. For regulation 20 there is substituted—
20.—(1) The officer conducting the hearing may adjourn the hearing if it appears to him to be necessary or expedient to do so for the due hearing of the case.
(2) But that officer must not—
(a)exercise the power to adjourn more than once, or
(b)adjourn for longer than a period of one week or, on an application by the member concerned, 4 weeks,
unless it appears to him to be necessary to do so.”.