158. The Magistrate may, for the purposes of an inquiry under section 156 or section 157—
(a) direct a local investigation to be made by such person as he thinks fit; or
(b) summon and examine an expert.
Bharatiya Nagarik Suraksha Sanhita, 2023
Chapter XI — Maintenance of Public Order and Tranquillity
158. The Magistrate may, for the purposes of an inquiry under section 156 or section 157—
(a) direct a local investigation to be made by such person as he thinks fit; or
(b) summon and examine an expert.
Source: official text of the Bharatiya Nagarik Suraksha Sanhita, 2023 (Ministry of Home Affairs).