Section 43: Officers competent to investigate offences under Chapters IV and VI

Notwithstanding anything contained in the Code, no police officer,—

(a) in the case of the Delhi Special Police Establishment, constituted under sub-section (1) of section 2 of the Delhi Special Police Establishment Act, 1946 (25 of 1946), below the rank of a Deputy Superintendent of Police or a police officer of equivalent rank;

(b) in the metropolitan areas of Mumbai, Kolkata, Chennai and Ahmedabad and any other metropolitan area notified as such under sub-section (1) of section 8 of the Code, below the rank of an Assistant Commissioner of Police;

¹[(ba) in the case of National Investigation Agency, below the rank of Inspector];

(c) in any case not relatable to clause (a) ¹[or clause (ba)], below the rank of a Deputy Superintendent of Police or a police officer of an equivalent rank,

Shall investigate any offence punishable under Chapter IV or VI.