If any person aggrieved by a compulsory purchase order desires to question the validity thereof, or of any provision contained therein, on the ground that the authorisation of a compulsory purchase thereby granted is not empowered to be granted under this Act or any such enactment as is mentioned in section 1(1) of this Act, he may make an application to the High Court.
If any person aggrieved by—
desires to question the validity thereof on the ground that any relevant requirement has not been complied with in relation to the order or certificate he may make an application to the High Court.
In subsection (2) above "relevant requirement" means—
An application to the High Court under this section shall be made within six weeks—