Section 221(b) in Police Regulations, Bengal , 1943
(b)When the destination of a suspect is unknown or when sufficient time is not available to obtain a ticket to enable a police officer to start by the particular train in which the suspect travels, he will be allowed to travel without a ticket on the line on his giving intimation to the guard of the train or some other responsible railway official present at the station and on arrival at his destination he shall report himself to the station master and fill in B.P. Form No. 22. The station master shall send the outer foils of these forms to the Superintendent for early payment of the charges. No excess fare shall be charged for journeys performed without a ticket under this regulation. Where the police officer is able to write English, the requisition form and the telegrams shall be written and signed by him in full with his official designation, police-station and district. If he is unable to write English, the station master shall fill up the forms and the telegrams at the request of the police officer who shall affix his left thumb mark on them. The nature of the emergent duty for which a train ticket is required or for which a journey by train was made without a ticket (unless the police officer has orders to keep it secret) must be clearly stated.