491.(1) The High Court Division may, whenever it thinks fit, direct:- (a) that a person within the limits of its appellate criminal jurisdiction be brought up before the Court to be dealt with according to law; (b) that a person illegally or improperly detained in public or private custody with such limits be set at liberty; (c) that a prisoner detained in any jail situate within such limits be brought before the Court to be there examined as a witness in any matter pending or to be inquired into in such Court; (d) that a prisoner detained as aforesaid be brought before a Court-martial or any Commissioners for trial or to be examined touching any matter pending before such Court-martial or Commissioners respectively; (e) that a prisoner within such limits be removed from one custody to another for the purpose of trial ; and ¹[* * *] (2) The ²[Supreme Court] may, from time to time, frame rules to regulate the procedure in cases under this section. ³[(3) Nothing in this section applies to persons detained under any law for the time being in force providing for preventive detention.]