Oscar Brownfield v. Cherokee County School District No. 35

Brownfield · United States District Court for the Eastern District of Oklahoma · March 19, 2026 · No. CIV-21-312-GLJ

Summary

The United States District Court for the Eastern District of Oklahoma sanctioned pro se plaintiff Oscar Brownfield under Federal Rule of Civil Procedure 11 for filing a sanctions motion containing fictitious and inaccurate case citations generated with assistance from artificial intelligence. The court imposed a $500 sanction payable to the defendant, finding it was the least severe sanction adequate to punish the conduct and deter recurrence.

Holdings

  1. A pro se litigant violates Rule 11(b)(2) by filing a pleading containing fictitious or materially inaccurate case citations without conducting a reasonable inquiry into the law, including when the citations resulted from unverified generative-AI research.
  2. A finding of subjective bad faith is not required to impose Rule 11 sanctions.
  3. The appropriate Rule 11 sanction was $500, rather than the full $7,032 claimed by Defendants, because the court could not determine how much of the claimed fee was attributable exclusively to the fictitious or inaccurate citations.

Questions Presented

  1. Whether Plaintiff's filing of a sanctions motion containing fictitious or inaccurate case citations, after failing to verify AI-generated legal research, violated Federal Rule of Civil Procedure 11(b)(2).
  2. Whether a subjective bad-faith finding was required before imposing Rule 11 sanctions.
  3. What sanction was appropriate under Rule 11(c)(4) in light of the inaccurate citations, Plaintiff's pro se status, candor, remedial measures, and the claimed defense fees.

Disposition

other

Cases Cited (24)

  • Bus. Guides, Inc. v. Chromatic Commc’ns Enters., Inc., 498 U.S. 533, 542 (1991)(followed)
  • Cooter & Gell v. Hartmarx Corp., 496 U.S. 384, 393 (1990)(followed)
  • Adamson v. Bowen, 855 F.2d 668, 672 (10th Cir. 1988)(followed)
  • Collins v. Daniels, 916 F.3d 1302, 1319-20 (10th Cir. 2019)(followed)
  • Predator Int’l, Inc. v. Gamo Outdoor USA, Inc., 793 F.3d 1177, 1182 (10th Cir. 2015)(followed)
  • Grays v. Blackhawk Acquisitions, LLC, 2024 WL 3179541, at *1 (D. Colo. June 26, 2024)(followed)
  • Ridder v. City of Springfield, 109 F.3d 288, 293 (6th Cir. 1997)(followed)
  • Chumpitaz-Morales v. Bondi, 2026 WL 382144, at *4 (10th Cir. Feb. 11, 2026)(followed)
  • Harris v. Take-Two Interactive Software, Inc., 2025 WL 1310122, at *2 (D. Colo. May 6, 2025)(followed)
  • Rasmussen v. Burnett, 2025 WL 808364, at *3 (D. Colo. Mar. 12, 2025)(followed)

Showing top 10 of 24.

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