14SIf any person aggrieved by a compulsory purchase order, or by a certificate under paragraph 13 above, desires to question the validity thereof, or of any provision contained therein, on the ground that it is not within the powers of this Act or that any requirement of this Act or of any regulation made thereunder has not been complied with in relation to the order or certificate, he may, within six weeks from the date on which notice of the confirmation or making of the order or of the giving of the certificate is first published in accordance with the provisions of this Schedule in that behalf, make an application to the Court of Session; and on any such application the Court—
(a)may by interim order suspend the operation of the order or any provision contained therein, or of the certificate, either generally or in so far as it affects any property of the applicant, until the final determination of the proceedings; and
(b)if satisfied that the order or any provision contained therein, or the certificate, is not within the powers of this Act or that the interests of the applicant have been substantially prejudiced by any requirement of this Act or of any regulation made thereunder not having been complied with, may quash the order or any provision contained therein, or the certificate, either generally or in so far as it affects any property of the applicant.