--- title: "United States v. Perez" citation: "United States v. Perez, 22 U.S. (9 Wheat.) 579 (1824)" authority_id: "AUTH-SCOTUS-PEREZ-22-US-579" authority_type: "case" jurisdiction: "federal_nationwide" precedential_status: "binding" official_url: "https://www.govinfo.gov/content/pkg/USREPORTS-22/pdf/USREPORTS-22-579.pdf" url: "https://jason93.com/legal/federal-process/authorities/AUTH-SCOTUS-PEREZ-22-US-579/" legal_review: "2026-08-25" links_checked: "2026-10-15" links_available: 1 links_checked_count: 1 license: "CC BY 4.0" --- # United States v. Perez ## Holding used A court may discharge a genuinely deadlocked jury and retry the defendant when manifest necessity or the ends of public justice support that course. ## Material limitation Manifest necessity is record- and cause-specific; a hung jury does not authorize a casual or automatic mistrial. ## Official source and pinpoints 22 U.S. (9 Wheat.) 579, 580 (1824): ## Used in - [Rule 29, Mistrial, Verdict, and Juror Misconduct](https://jason93.com/legal/federal-process/modules/30-plea-and-trial/rule-29-mistrial-verdict-and-juror-misconduct.md)