Colgrove v. Battin

Background

The dispute began when a federal district judge in Montana set a civil diversity trial to proceed before a six-person jury under the court’s local Rule 13(d)(1). One party asked the Court of Appeals to order the judge to empanel a 12-member jury, arguing the local rule violated the Seventh Amendment, a federal statute about civil rules (28 U.S.C. §2072), and the Federal Rules of Civil Procedure. The Ninth Circuit denied that request, and the Supreme Court agreed to review the question.

Reasoning

The Court asked whether the Seventh Amendment requires a twelve-person jury in federal civil cases. It relied on earlier cases, especially Williams v. Florida, and on constitutional history to conclude the Seventh Amendment preserves the right to a jury in “suits at common law,” but does not freeze every historic jury detail like size. The Court found studies and prior analysis showing no “discernible difference” in outcomes between six- and twelve-member juries. It held that six-member juries satisfy the Seventh Amendment, that 28 U.S.C. §2072 does not force a twelve-person rule, and that the local rule is not inconsistent with Federal Rule 48.

Real world impact

The decision affirms the Montana local rule and validates similar six-juror local rules adopted in many districts, allowing district courts to try some civil cases with six jurors. That means litigants in federal civil cases may face six-member juries where local practice allows it. The ruling resolves the specific dispute and is a final Supreme Court holding on these questions.

Dissents or concurrances

Three Justices dissented or would have reversed, arguing the Federal Rules and §2072 presuppose a twelve-member jury and that reducing jury size alters an essential historical feature protected by the Seventh Amendment.