This Act stipulates that, notwithstanding any provision in any enactment or any rule of law, a person may, in the public interest and without the consent of the Attorney-General, make an application to the Supreme Court for the protection and enforcement of public rights. Such application shall not be made unless leave of the Supreme Court has been obtained in accordance with rules of court; and the Court shall not grant leave to make such an application unless it considers that the applicant ha