Summary

Byron White Duncan v. Louisiana — Opinion of the Court

The position of Louisiana, on the other hand, is that the Constitution imposes upon the States no duty to give a jury trial in any criminal case, regardless of the seriousness of the crime or the size of the punishment which may be imposed. Because we believe that trial by jury in criminal cases is fundamental to the American scheme of justice, we hold that the Fourteenth Amendment guarantees a right of jury trial in all criminal cases which—were they to be tried in a federal court—would come within the Sixth Amendment's guarantee.
Source: Wikisource

Byron White Duncan v. Louisiana — Opinion of the Court

Instead, every American State, including Louisiana, uses the jury extensively, and imposes very serious punishments only after a trial at which the defendant has a right to a jury's verdict. In every State, including Louisiana, the structure and style of the criminal process—the supporting framework and the subsidiary procedures—are of the sort that naturally complement jury trial, and have developed in connection with and in reliance upon jury trial.
Source: Wikisource

Byron White Duncan v. Louisiana — Opinion of the Court

Jury trial came to America with English colonists, and received strong support from them. Royal interference with the jury trial was deeply resented. Among the resolutions adopted by the First Congress of the American Colonies (the Stamp Act Congress) on October 19, 1765—resolutions deemed by their authors to state "the most essential rights and liberties of the colonists" [18] —was the declaration:
"That trial by jury is the inherent and invaluable right of every British subject in these colonies."
Source: Wikisource

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