In my judgment that proposition rests upon a misconception of the purpose and meaning of s 3(4). As it appears to me, that subsection, so far from being a restrictive provision, is a subsection introduced for the purpose of enlarging the Admiralty jurisdiction of the court. As I view it, its purpose is to confer, and to confer for the first time in England, the right to arrest either the ship in respect of which the cause of action is alleged to have arisen or any other ship in the same ownership. That is an entirely new right so far as the law of England is concerned, although it previously existed in other countries, including Scotland; and the reason for conferring that right now is for the purpose of bringing this country into line with other countries as a result of an international convention. In my judgment the purpose of the words "the person who would be liable on the claim in an action in personam" is to identify the person or persons whose ship or ships may be arrested in relation to this new right (if I may so express it) of arresting a sister ship. The words used, it will be observed, are "the person who would be liable" not "the person who is liable", and it seems to me, bearing in mind the purpose of the Act, that the natural construction of those quite simple words is that they mean the person who would be liable on the assumption that the action succeeds. This action might or might not succeed if it were brought in personam; that would depend upon the view which the court ultimately took of the various contentions raised by [counsel]. But clearly, if the action did succeed, the person or persons who would be liable would be the owner or owners of the steamship St Elefterio. In such circumstances, in the absence of any suggestion that the action is a frivolous or vexatious action, I am satisfied that the plaintiffs are entitled to bring it and to have it tried, and that, whether or not their claim turns out to be a good one, they are entitled to assert that claim by proceeding in rem.
1. The "St Elefterio" [1957] P 179 at 185.
2. The "St Elefterio" [1957] P 179 at 185-186.