The Magistrate may, for the purposes of an inquiry under section 137 or section 138-
(a) direct a local investigation to be made by such person as he thinks fit; or
(b) summon and examine an expert.
Code of Criminal Procedure (CrPC)
131 CrPC Power of certain armed force officers to disperse assembly
132 CrPC Protection against prosecution for acts done under preceding sections
133 CrPC Conditional order for removal of nuisance
134 CrPC Service or notification of order
135 CrPC Person to whom order is addressed to obey or show cause
136 CrPC Consequences of his failing to do so
137 CrPC Procedure where existence of public right is denied
138 CrPC Procedure where he appears to show cause
139 CrPC Power of Magistrate to direct local investigation and examination of an expert
140 CrPC Power of Magistrate to furnish written instructions, etc