His authority is generally implied and is according to the law of the ship's flag. Generally speaking, he is the owner's agent and his authority extends to all matters within the scope of his appointment. Where the owner is present, or easily accessible, this authority is narrowed, but otherwise it may be very broad, and measured only by the necessities of the situation, and the use and employment of the ship.
On shipboard, his authority is supreme, except, possibly, in the presence of the owner.
He has power to enforce discipline and inflict punishment, not unlike that in the relationship of parent and child, or teacher and pupil, save that he is forbidden by statute to inflict corporal punishment (Act of March 4, 1915). The old flogging days, therefore, are over, and the master who inflicts corporal punishment is guilty of a crime. He may, in proper cases, discharge or disrate members of the crew.
On the other hand, the law charges him with the duty of seeing that the crew has sufficient provisions (§ 4564); proper medical care (§ 4569); protection against unlawful violence, and the like; and he is criminally liable for abandoning sailors in a foreign port (§ 5363).[6]
2. Personal Liability.—
His personal liability is practically unlimited. The owner may confine his liability to the value of the ship but the master has no such privilege. Thus materialmen may sue the master personally for supplies and repairs (General Admiralty Rule 12);[7] the sailors may sue him for their wages (Rule 13); the pilot, for pilotage (Rule 14); suits for collision may be brought against him alone (Rule 15), and he is responsible for moneys loaned the ship in a foreign port (Rule 17); so, also he is liable for cargo injured by the ship and may be sued by the underwriters therefor (Co. v. Dexter, 52 Fed. 152).
3. Restriction on Authority.—
The master is the owner's agent in all matters fairly within the scope of his authority but has no more authority to bind him than any other special agent. He is not a general agent and his powers are usually confined to the property in his charge. In cases of necessity, when the owner is not present, his authority is very broad but it is correspondingly restricted when the owner is present. He cannot bind the owner personally beyond the value of the ship and freight pending; he cannot vary or annul the owner's agreements; he cannot make a promissory note binding on the owner; or bind him for cargo not actually on board by a bill-of-lading;[8] or admit an invalid claim; nor purchase a cargo on his account.
In dealing with other persons on board his vessel his authority is as broad as the exigencies of his situation require and he may, in proper cases, and after exhausting pacific measures put even passengers under arrest. But he cannot delegate this authority to minor officials or others on board but must personally exercise such responsible duties and see to it that nothing unreasonable is done. It has been held that while he may restrain, or even confine, a passenger who refuses to submit to the necessary discipline of the ship, he ought not to inflict any higher punishment than a reprimand upon a passenger without first conferring with his officers and entering the facts on the log. His authority to punish members of the crew must be exercised with moderation and in reason. He has no authority to punish by flogging or the use of any illegal instrument and in testing the legality of punishment or chastisement the methods and weapons employed are important.[9]