---
title: "United States v. Leon"
citation: "United States v. Leon, 468 U.S. 897 (1984)"
authority_id: "AUTH-SCOTUS-LEON-468-US-897"
authority_type: "case"
jurisdiction: "federal_nationwide"
precedential_status: "binding"
official_url: "https://www.govinfo.gov/content/pkg/USREPORTS-468/pdf/USREPORTS-468-897.pdf"
url: "https://jason93.com/legal/federal-process/authorities/AUTH-SCOTUS-LEON-468-US-897/"
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. Leon

## Holding used

Deterrence basis of the exclusionary rule and objective-reliance exception for a later-invalidated warrant, with the opinion's four principal limits.

## Material limitation

Later cases refine deterrence and other warrant or nonwarrant contexts; the actual affidavit and officer conduct control.

## Official source and pinpoints

468 U.S. 897, 906–13, 922–23 (1984): <https://www.govinfo.gov/content/pkg/USREPORTS-468/pdf/USREPORTS-468-897.pdf>


## Used in

- [Suppression, Severance, and Pretrial Evidentiary Motions](https://jason93.com/legal/federal-process/modules/20-pretrial/suppression-severance-and-pretrial-motions.md)