CHAP.11] THE COMMONWEALTH OF AUSTRALIA 869 carry cargo from New York to Australian ports, which under the charter were to be Adelaide, Melbourne, Sydney, and Brisbane. No other trading was contemplated by the charter, but as a mere matter of courtesy a small package {7 1b. in weight) which had been part of the cargo of another ship, and had been inadvertently left behind at Adelaide, was carried by the captain to Brisbane. No charge was made, no bill of lading or shipping note was signed, and the package was not entered in the ship’s manifest. The respon- dent shipped at Sydney as a seaman for the voyage to Brisbane and back, and was injured by an accident before the ship reached Brisbane, where he was discharged. It was sought by the respondent to have the ship detained under the power conferred by s. 13 of the Act, which provides that if it is alleged that the owner of a ship actually within the territorial waters of Australia is liable as such to pay compensation under the Act, a Justice of the High Court or a Judge of the Supreme Court may issue an order for deten- tion of the ship until security has been given for payment of compensation. By s. 4 of the Act it was made to apply to the employment of seamen engaged in the coasting trade, and a ship was to be deemed to be engaged in the coasting trade © if she takes on board passengers or cargo at any port in a state . . . to be carried to and landed and delivered at any port in the same state . . . or another state ’. Mr. Justice Street made an order for the detention of the vessel, and Mr. Justice Gordon refused to discharge the order, and from this order an appeal was brought on two grounds : (1) that upon the undisputed facts the Act did not apply to the ship in question, and (2) that the Act was not within the powers of the Parliament of the Commonwealth. The Court held that the first ground for appeal was clearly justifiable. It was laid down that as a general rule a ship could not become engaged in the coasting trade without the knowledge and volition of the owner or of some person for whose acts he was responsible. There was nothing to suggest that the chief officer or the master who offered no objection had any authority on behalf of the owners to engage the ship