Prosecution of police of,ficers

No Court shalltake cognizance of any olfence aileged lo have been commitied lnder this Act by any PoLlce otfcer whie acting or purporting lo act in the discharge of his official duty excepl on a report in wrillnq ofthe tacts constltutlng such offence by, orwith lhe previous sanction by the auihority dLr y authorlzed by the State Governmenl in his behalf.