Section 237(e) in Police Regulations, Bengal , 1943
(e)At mufassil police-stations to which arms have been supplied, a constable should be on duty at the station premises during the day and one should sleep against the door of the malkhana at night. The Superintendent, the Circle Inspector or the officer-in-charge of the police-station may order an armed sentry carrying 5 rounds of buckshot ammunition to be mounted at night if local conditions necessitate such action. The sentry shall be relieved at regular intervals under the supervision of a Sub-Inspector or an Assistant Sub-Inspector.
