Summary

William Strong Blyew v. United States — Opinion of the Court

Surely no court can have jurisdiction of either a case or a cause until it is presented in the form of an action. We regard, therefore, The United States v. Ortega as an authority directly in point to the effect that witnesses in a criminal prosecution are not persons affected by the cause. It necessarily results from this that jurisdiction of the offence for which these defendants were indicted, was not conferred upon the Circuit Court by the act of Congress.
Source: Wikisource

William Strong Blyew v. United States — Opinion of the Court

We are thus brought to the question whether a criminal prosecution for a public offence is a cause 'affecting,' within the meaning of the act of Congress, persons who may be called to testify therein. Obviously the only parties to such a cause are the government and the persons indicted. They alone can be reached by any judgment that may be pronounced. No judgment can either enlarge or diminish the personal, relative, or property rights of any others than those who are parties. It is true there are some cases which may affect the rights of property of persons who are not parties to the record.
Source: Wikisource

William Strong Blyew v. United States — Opinion of the Court

But an indictment prosecuted by the government against an alleged criminal, is a cause in which none but the parties can have any concern, except what is common to all the members of the community. Those who may possibly be witnesses, either for the prosecution or for the defence, are no more affected by it than is every other person, for any one may be called as a witness. It will not be thought that Congress intended to give to the District and Circuit Courts jurisdiction over all causes both civil and criminal. They have expressly confined it to causes affecting certain persons.
Source: Wikisource

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