National Parks and Access to the Countryside Act 1949

8 If any person desires to question the validity of an order to which Part I or Part II of this Schedule applies on the ground that it is not within the powers of this Act, or on the ground that any requirement of this Act or of any regulation made thereunder has not been complied with in relation to the making or confirmation of the order, he may, within six weeks after the date of publication of notice of the confirmation or making of the order in accordance with the foregoing provisions of this Schedule in that behalf, make an application to the High Court; and on any such application the court—

(a) may by interim order suspend the operation of the order, either generally or in so far as it affects the applicant, until the final determination of the proceedings; and

(b) if satisfied that the order is not within the powers of this Act or that the interests of the applicant have been substantially prejudiced by a failure to comply with any such requirement as aforesaid, may quash the order cither generally or in so far as it affects the applicant.