municipal extension of our law over persons never subject to us, and in respect to property never under our dominion. And thus your honors see that, just in proportion as the ninth section has extended the crime, it has limited both the persons to whom the statute is applied, and the property in respect of which the crime is defined. It is wholly limited to our own citizens, subject to whatever laws we choose to make for our own government, and in respect of the marine property of the United States, and of its citizens when at sea, which, by every rule of the extension or limit of municipal authority, is always regarded, on general principles of public jurisprudence, as a part of the property and of the territory of the nation to which the ship and cargo belong, wherever it may be on the high seas. Now, this ninth section, I suppose, if your honors please,--and such I understand to be the views of Judge Sprague, as expressed by him to the Grand Jury, at Boston,--proceeds and is supported on the general control given by the Constitution to Congress over all external commerce, which, I need not say, must, to be effective, extend to the criminal jurisprudence which protects against wrong, and the criminal control which punishes crime perpetrated by our citizens on our own commerce on the high seas. My learned friend would certainly not contend that the different States had this authority in reference to crimes on the high seas. And, if they have not that authority, then, between these jurisdictions, we should have omitted one of the most necessary, one of the most ordinary, one of the wisest and plainest duties of Governments in regard to the protection of their commerce. For, it is idle to say that there are no crimes which may be committed at sea which are not piracy, and that there is no protection needed for our own commerce against our own citizens which does not fall within the international law of piracy. _Mr. Brady_: I ask Mr. Evarts' permission to make a suggestion upon this point, which it is due to him, and to myself, also, that I should present, that I may hear his views in respect to it. I would ask the learned gentleman, and the Court, to suppose the case of an American citizen who, on the breaking out of a war between the United States and England, should be residing in England as a denizen, and who had resided there for many years, and who should take a commission for privateering from the British Government, regularly issued, having about it all the sanctions belonging to such an authority, and who, in the prosecution of a war, should take an American prize,--would he be liable to be convicted in the Courts of the United States of piracy or robbery, under the act of 1790? He clearly would, on its language. And then the question occurs--Had Congress any authority to pass such a law?