(1) The Director may by notice in the IAIP declare any area to be a restricted area and shall, when so declaring an area to be a restricted area, specify in the notice in question—
(a) the nature and extent of the restriction applicable in respect of the area in question; and
(b) the authorisation under which flights in such restricted area shall be permitted.
(2) No person shall, in contravention of a restriction contemplated in subregulation (1) (a), fly any aircraft to which the said restriction applies, in any restricted area, unless the flight in question has been permitted by virtue of an authorisation contemplated in subregulation (1) (b).