710 F.Supp.3d 849
D. Nev.2024Background
- Raul Lopez, on supervised release for a prior felon-in-possession conviction, was alleged to have committed new crimes (domestic assault and battery) and faced revocation proceedings.
- At a preliminary hearing, the magistrate judge found probable cause that Lopez violated his supervised release and ordered him detained.
- The only government evidence was testimony from Lopez’s probation officer, based solely on a police report and system alerts; no direct or documentary evidence was submitted.
- Lopez appealed the magistrate judge’s probable-cause finding to the district court, also moving for a jury trial on the revocation petition.
- The district court scrutinized its jurisdiction to review the magistrate’s post-judgment determination and conducted expedited briefing on this threshold question.
- Ultimately, the district court found the record insufficient to support probable cause, granted Lopez’s appeal, and dismissed the revocation petition.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| District court jurisdiction to review | Lopez: § 636(b)(1)(A) and plenary powers allow review. | Gov't: § 636(b)(1)(A) does not apply to post-judgment hearings. | Jurisdiction based on plenary powers, not § 636(b)(1)(A). |
| Sufficiency of probable cause evidence | Lopez: Record is double-hearsay, scant, no factual support for probable cause. | Gov't: Probation officer’s testimony sufficient for probable cause. | Record lacks sufficient evidence; probable cause not established. |
| Right to jury trial in revocation | Lopez: Requested jury trial for revocation. | Gov't: Not addressed (motion rendered moot by dismissal). | Denied as moot. |
| Validity of revocation petition | Lopez: Should be dismissed for lack of probable cause. | Gov't: Petition supported by arrest and allegations. | Petition dismissed without prejudice. |
Key Cases Cited
- United States v. Brigham, 569 F.3d 220 (5th Cir. 2009) (district courts retain authority to review magistrate's probable-cause determinations under plenary powers)
- Branch v. Umphenour, 936 F.3d 994 (9th Cir. 2019) (Article III judges retain plenary responsibility over assigned matters)
- United States v. Vargas-Amaya, 389 F.3d 901 (9th Cir. 2004) (probable cause in supervised-release proceedings follows Fourth Amendment standard)