(a)nothing herein contained shall be deemed to require any Magistrate, or Judge of a Criminal Court to examine or impound if he does hot think fit so to do, any instrument coming before him in the course of any proceeding other than a proceeding under Sections 125 to 128 and Sections 145 to 148 of the Code of Criminal Procedure, 1973 (Act No. 2 of 1974).