The ground of the demurrer is that reg. 188 is invalid. The regulation is in the following terms: - "(1) Every person who has the control or custody of excisable goods, while such goods are in course of removal, or are in transit coastwise, or are in or at an approved place, or until delivery for home consumption or exportation to parts beyond the seas, shall be responsible for the safe keeping of such goods while they are in his control or custody, and shall account for such goods to the satisfaction of the Collector. (2) If any person fails to comply with his obligations under this regulation, he shall be liable to pay to the Collector an amount equal to the duty on the excisable goods not safely kept or not accounted for to the satisfaction of the Collector. (3) This regulation shall not affect the liability of any person arising under the Excise Act 1901-1923, or any security purporting to have been given in pursuance thereof, or of the Excise Act 1901. (4) Any sum payable to the Collector under this regulation may be sued for by action in any civil court having jurisdiction to entertain suits for debts to the amount claimed, as if it were a debt due by the defendant to the Collector. (5) In any action under this regulation, the statements or averments of the Collector in his claim or declaration shall be prima facie evidence of the matter or matters stated or averred."