Section 197(iii) in Police Regulations, Bengal , 1943
(iii)Court and Detective Department Inspectors, Armed Inspectors and the Reserve Office Inspectors when deputed on duty outside their headquarters shall also submit to the Superintendent personal diaries in B. P. Form No. 18. Similarly, Sergeants (except when engaged on ordinary duties in the Special Armed Force), Sub-Inspector and Assistant Sub-Inspectors of the Reserve and Court offices shall submit such diaries to their Inspectors.