"(1) No person shall be liable, whether on the ground of want of jurisdiction or on any other ground, to any civil or criminal proceedings to which he would have been liable apart from this section in respect of any act purporting to be done in pursuance of this Act or any regulations or rules made under this Act, or in, or in pursuance of anything done in, the discharge of functions conferred by any other enactment on the authority having jurisdiction under Part VII of this Act, unless the act was done in bad faith or without reasonable care. "(2) No civil proceedings shall be brought against any person in any court in respect of any such act without the leave of the High Court; and no criminal proceedings shall be brought against any person in any court in respect of any such act except by or with the consent of the Director of Public Prosecutions."
"The issue is not whether the applicant has established a prima facie case or even whether there is a serious issue to be tried, although that comes close to it. The issue is whether, on the material immediately available to the court, which, of course, can include material furnished by the proposed defendant, the applicant's complaint appears to be such that it deserves the fuller investigation which will be possible if the intended applicant is allowed to proceed."
"a party has persistently issued claims or made applications which are totally without merit."