Page:Joseph Story, Commentaries on the Constitution of the United States (1st ed, 1833, vol III).djvu/116

 108 might be committed, then this principle would apply to them, as to other local legislatures; and the felon, who should escape out of the fort, or other place, in which the felony may have been committed, could not be apprehended by the marshal, but must be demanded from the executive of the state. But we know, that the principle does not apply; and the reason is, that congress is not a local legislature, but exercises this particular power, like all its other powers, in its high character, as the legislature of the Union. The American people thought it a necessary power, and they conferred it for their own benefit. Being so conferred, it carries with it all those incidental powers, which are necessary to its complete and effectual execution.

§ 1230. Whether any particular law be designed to operate without the district or not, depends on the words of that law. If it be designed so to operate, then the question, whether the power, so exercised, be incidental to the power of exclusive legislation, and be warranted by the constitution, requires a consideration of that instrument. In such cases the constitution and the law must be compared and construed. This is the exercise of jurisdiction. It is the only exercise of it, which is allowed in such a case.