Buchanan v. Vuori, Inc.
N.D. California · Nov 20, 2025
- Jurisdiction
- federal
- Court
- N.D. California
- Record ID
- buchanan-v-vuori-inc-2025-11-20
- Observed outcome
- The court struck the motions, imposed a $250 monetary sanction, referred the attorney to the Standing Committee on Professional Conduct, and disqualified the attorney from serving as class counsel.
- Known monetary consequence
- $250
Why this matter warrants attention
The court sanctioned attorney James Dal Bon for violating Rule 11(b) and local professional conduct rules by submitting AI-generated filings containing fabricated case law and false quotations. The court struck the motions, imposed a $250 fine, referred the attorney to the Standing Committee on Professional Conduct, and disqualified him from serving as class counsel.
Fabricated: Case Law | The motion relies on a cited case that does not exist; Court's research found 2021 WL 4453429 is not a judicial opinion and no Reed v. ZipRecruiter opinion was located. || False Quotes: Case Law | Eight instances where the motion quotes language attributed to real cases but the quoted language does not appear in those cases (court identified specific ECF locations).
Mixing consumer AI (ChatGPT/Claude) with paid tools (Westlaw/Lexis) still triggers bar referral — verify every cite against primary source.
Failure modes and consequences
- Fake Citations
- Fabricated Quotes
- Contract
- Trial
- Monetary
- Bar Referral
- AI attribution
- Admitted
- Recorded tool
- ChatGPT-4, OpenAI, Claude, Clear Brief, Lexis Nexis & Westlaw
- Known monetary consequence
- $250
- Procedural posture
- Order imposing sanctions following an Order to Show Cause hearing held on November 19, 2025.
Damien Charlotin case archive
Publisher document archive. The recorded document is hosted in the upstream publisher archive.
Open underlying sourceA recorded source link is not a substitute for checking the underlying order, filing, opinion, or disciplinary record.
What this record does—and does not—establish
The attorney admitted to using about six different AI tools including ChatGPT-4, OpenAI, Claude, Clear Brief, Lexis Nexis, and Westlaw.
Retained unchanged after audit: the existing summary is source-specific, non-placeholder, and supported by the recorded source link. Read the underlying source before relying on it for legal advice or a filing.
Latest evidence review: Primary Document Verified (high confidence).
Controls suggested by the public record
- Verify each cited authority, quotation, and proposition against the underlying source before filing.
- Do not treat a paid legal-research product as a substitute for source verification.
- Use only approved research and drafting tools for legal work.