(1) Where the Magistrate directs a local investigation by any person under section 139, the Magistrate may—
(a) furnish such person with such written instructions...
A District Magistrate or Sub-divisional Magistrate, or any other Executive Magistrate empowered by the State Government or the District Magistrate in this behalf, may...
(1) In cases where, in the opinion of a District Magistrate, a Sub-divisional Magistrate or any other Executive Magistrate specially empowered by the State...
(1) Whenever a local inquiry is necessary for the purposes of section 145, section 146 or section 147, a District Magistrate or Sub-divisional Magistrate...