Summary

Rufus Wheeler Peckham Claughry v. Peter Deming — Opinion of the Court

As to the officer to be tried there was no court, for it seems to us that it cannot be contended that men, not one of whom is authorized by law to sit, but, on the contrary, all of whom are forbidden to sit, can constitute a legal court-martial because detailed to act as such court by an officer who in making such detail acted contrary to and in complete violation of law. Where does such a court obtain jurisdiction to perform a single official function?
Source: Wikisource

Rufus Wheeler Peckham Claughry v. Peter Deming — Opinion of the Court

The question of who shall act on courts-martial for the trial of offenders belonging to the various branches of the Army of the United States is one entirely for Congress to determine. If it should think the time has come to do away with the distinction between the volunteer or militia force and the Regular Army, it rests in its discretion to so provide.
Source: Wikisource

Rufus Wheeler Peckham Claughry v. Peter Deming — Opinion of the Court

If the defendant were a member of one of the 'other forces,' named in the 77th article of war, a court-martial, solely convened for the purpose of trying him, composed entirely of regular officers, would not have jurisdiction. Such a body would have jurisdiction over neither the subject-matter nor the person. A court-martial is the creature of statute, and, as a body or tribunal, it must be convened and constituted in entire conformity with the provisions of the statute, or else it is without jurisdiction.
Source: Wikisource

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