Section 725(a) in Police Regulations, Bengal , 1943
(a)When the journey is to be made entirely within the province of Bengal, the escort shall not be relieved en route. It may, however, be necessary to strengthen the escort at transhipment stations or where a portion of the journey has to be made by road on the termination of a railway or steamer journey. In such cases the extra force shall be supplied by the Superintendent of the district in whose jurisdiction the transhipment station or terminus of the railway or steamer journey lies.
