3. Place of Trial.—
Whenever an offense is committed on board of an American vessel, it is the duty of the master and crew to detain the offender and surrender him to the proper authorities for trial as soon as may be. If the offense is within the limits of a particular State, the trial must be in a Federal court therein; if committed on the high seas, then in a like court of the district wherein the offender is apprehended or into which he is first brought; if within a port of a foreign country, the local laws may prevail. The jurisdiction of every independent nation over the merchant vessels of other nations within its boundaries is absolute and exclusive and arrests may be made thereon and offenders removed for trial according to the laws of the locality. The right of local authorities to search a vessel in their ports for a person charged with crime is established unless modified by treaty. The master is bound to submit to the jurisdiction within which his vessel lies. In practice a distinction is made between offenses affecting the peace and dignity of the foreign country and those only involving the internal order and discipline of the ship. A certain comity preserves the latter from outside interference and local authorities will usually decline to act in such cases or interfere with the general authority of the master. It is frequently provided by treaty that disputes between the masters, officers and crews may be adjudicated by their consuls, provided that they do not disturb the peace or tranquillity of the port.