44. (1) If the master of any vessel in respect of which any such sum as is mentioned in the last foregoing section is payable causes her to leave any port without having paid the sum, the authority appointed to receive port-dues, fees and other charges at the port under this Act may require in writing the authority appointed to receive port-dues, fees and other charges under this Act at any other port in Bangladesh to which she may proceed, or in which she may be, to levy the sum.(2) The authority to whom the requisition is directed shall proceed to levy such sum in the manner prescribed in section 42, and a certificate purporting to be made by the authority appointed to receive port-dues, fees and other charges at the port where such sum as is mentioned in the last foregoing section became payable stating the amount payable, shall be sufficient prima facie proof of such amount in any proceeding under section 42 and also (in case the amount payable is disputed) in any subsequent proceeding under section 59.