The Attorney-General, on the consideration of any petition for the exercise of His Majesty's mercy, having reference to the conviction of any person or to any sentence passed on a convicted person, may –

(a) refer the whole case to the Court, and the case shall be heard and determined by the Court as in the case of an appeal by a person convicted; or

(b) if he desires the assistance of the Court on any point arising in the case with a view to the determination of the petition, refer that point to the Court for its opinion thereon, and the Court shall consider the point so referred and furnish the Attorney-General with its opinion thereon accordingly.