Section 1238(7) in Police Regulations, Bengal , 1943
(7)In presenting the bills for encashment at the sadar treasury, the Superintendent shall send with it a memorandum addressed to the Treasury Officer showing what amount is required in cash for distribution at sadar and for what sums cash orders on sub-treasuries are required. A certificate shall be attached stating that the police officers for whose travelling allowances cash orders are required, are stationed within the jurisdiction of the sub-treasuries.