The law, where a contract is made and is to be executed, governs it. This does not depend upon comity, but upon the law of the contract. And if, in the language of the Supreme Court of Missouri, the master, by taking his slave to Illinois, and employing him there as a slave, emancipates him as effectually as by a deed of emancipation, is it possible that such an act is not matter for adjudication in any slave State where the master may take him? Does not the master assent to the law, when he places himself under it in a free State?

The States of Missouri and Illinois are bounded by a common line. The one prohibits slavery, the other admits it. This has been done by the exercise of that sovereign power which appertains to each. We are bound to respect the institutions of each, as emanating from the voluntary action of the people. Have the people of either any right to disturb the relations of the other? Each State rests upon the basis of its own sovereignty, protected by the Constitution. Our Union has been the foundation of our prosperity and national glory. Shall we not cherish and maintain it? This can only be done by respecting the legal rights of each State.

If a citizen of a free State shall entice or enable a slave to escape from the service of his master, the law holds him responsible, not only for the loss of the slave, but he is liable to be indicted and fined for the misdemeanor. And I am bound here to say, that I have never found a jury in the four States which constitute my circuit, which have not sustained this law, where the evidence required them to sustain it. And it is proper that I should also say, that more cases have arisen in my circuit, by reason of its extent and locality, than in all other parts of the Union. This has been done to vindicate the sovereign rights of the Southern States, and protect the legal interests of our brethren of the South.

Let these facts be contrasted with the case now before the court. Illinois has declared in the most solemn and impressive form that there shall be neither slavery nor involuntary servitude in that State, and that any slave brought into it, with a view of becoming a resident, shall be emancipated. And effect has been given to this provision of the Constitution by the decision of the Supreme Court of that State. With a full knowledge of these facts, a slave is brought from Missouri to Rock Island, in the State of Illinois, and is retained there as a slave for two years, and then taken to Fort Snelling, where slavery is prohibited by the Missouri compromise act, and there he is detained two years longer in a state of slavery. Harriet, his wife, was also kept at the same place four years as a slave, having been purchased in Missouri. They were then removed to the State of Missouri, and sold as slaves, and in the action before us they are not only claimed as slaves, but a majority of my brethren have held that on their being returned to Missouri the status of slavery attached to them.

I am not able to reconcile this result with the respect due to the State of Illinois. Having the same rights of sovereignty as the State of Missouri in adopting a Constitution, I can perceive no reason why the institutions of Illinois should not receive the same consideration as those of Missouri. Allowing to my brethren the same right of judgment that I exercise myself, I must be permitted to say that it seems to me the principle laid down will enable the people of a slave State to introduce slavery into a free State, for a longer or shorter time, as may suit their convenience; and by returning the slave to the State whence he was brought, by force or otherwise, the status of slavery attaches, and protects the rights of the master, and defies the sovereignty of the free State. There is no evidence before us that Dred Scott and his family returned to Missouri voluntarily. The contrary is inferable from the agreed case: "In the year 1838, Dr. Emerson removed the plaintiff and said Harriet, and their daughter Eliza, from Fort Snelling to the State of Missouri, where they have ever since resided." This is the agreed case; and can it be inferred from this that Scott and family returned to Missouri voluntarily? He was removed; which shows that he was passive, as a slave, having exercised no volition on the subject. He did not resist the master by absconding or force. But that was not sufficient to bring him within Lord Stowell's decision; he must have acted voluntarily. It would be a mockery of law and an outrage on his rights to coerce his return, and then claim that it was voluntary, and on that ground that his former status of slavery attached.

If the decision be placed on this ground, it is a fact for a jury to decide, whether the return was voluntary, or else the fact should be distinctly admitted. A presumption against the plaintiff in this respect, I say with confidence, is not authorized from the facts admitted.

In coming to the conclusion that a voluntary return by Grace to her former domicil, slavery attached, Lord Stowell took great pains to show that England forced slavery upon her colonies, and that it was maintained by numerous acts of Parliament and public policy, and, in short, that the system of slavery was not only established by Great Britain in her West Indian colonies, but that it was popular and profitable to many of the wealthy and influential people of England, who were engaged in trade, or owned and cultivated plantations in the colonies. No one can read his elaborate views, and not be struck with the great difference between England and her colonies, and the free and slave States of this Union. While slavery in the colonies of England is subject to the power of the mother country, our States, especially in regard to slavery, are independent, resting upon their own sovereignties, and subject only to international laws, which apply to independent States.

In the case of Williams, who was a slave in Granada, having run away, came to England, Lord Stowell said: "The four judges all concur in this—that he was a slave in Granada, though a free man in England, and he would have continued a free man in all other parts of the world except Granada."

Strader v. Graham (10 Howard, 82, and 18 Curtis, 305) has been cited as having a direct bearing in the case before us. In that case the court say: "It was exclusively in the power of Kentucky to determine, for itself, whether the employment of slaves in another State should or should not make them free on their return." No question was before the court in that case, except that of jurisdiction. And any opinion given on any other point is obiter dictum, and of no authority. In the conclusion of his opinion, the Chief Justice said: "In every view of the subject, therefore, this court has no jurisdiction of the case, and the writ of error must on that ground be dismissed."

In the case of Spencer v. Negro Dennis, (8 Gill's Rep., 321,) the court say: "Once free, and always free, is the maxim of Maryland law upon the subject. Freedom having once vested, by no compact between the master and the liberated slave, nor by any condition subsequent, attached by the master to the gift of freedom, can a state of slavery be reproduced."