(3) If on a representation in writing, made by a person authorised in this behalf by the Central Government or the Reserve Bank, a District Magistrate, Sub Divisional Magistrate, Presidency Magistrate or Magistrate of the first class, has reason to believe that a contravention of any of the provisions of this Act has been, or is being or is about to be, committed in any place, (2) of this section has been or might be addressed, will not or would not produce the information, book or other document, or where such information, book or other document is not known to the Magistrate to be in the possession of any person, or where the Magistrate considers that the purposes of any investigation or proceeding under this Act will be served by a general search or inspection, 728 he may issue a search warrant and the person to whom such warrant is directed may search or inspect in accordance therewith and seize any book or other document, and the provisions of the Code of Criminal Procedure, 1898 relating to searches under that Code shall, so far as the same are applicable, apply to searches under this sub section: Provided that such warrant shall not be issued to any police officer below the rank of sub inspector.