proceeding has been instituted on a police report, the Magistrate shall without delay furnish to the accused, free of cost, a copy of each of the following :— (i) the police report; (ii) the first information report recorded under section 154; (iii) the statements recorded under sub -section (3) of section 161 of all persons whom the prosecution proposes to examine as its witnesses, excluding therefrom any part in regard to which a request for such exclusion has been made by the police officer under sub -section (6) of section 173; (iv) the confessions and statements, if any, recorded under section 164; (v) any other document or relevant extract thereof forwarded to the Magistrate with the police report under sub -section (5) of section 173: Provided that the Magistrate may, after perusing any such part of a statement as is referred to in