Lin v. Leal
California SC · Oct 23, 2025
- Jurisdiction
- state
- Court
- California SC
- Record ID
- lin-v-leal-2025-10-23
- Observed outcome
- The court granted the defendant's motion for summary judgment and issued an Order to Show Cause for sanctions against plaintiffs' counsel.
- Known monetary consequence
- Not recorded
Why this matter warrants attention
The court issued an Order to Show Cause regarding potential sanctions against plaintiffs' counsel for citing a non-existent case and misrepresenting another authority in their opposition to a motion for summary judgment. The court explicitly identified these citations as likely generated by AI tools and scheduled a hearing to address the violation of California Code of Civil Procedure section 128.7(b)(2).
The court determined that the plaintiffs' opposition relied on a non-existent case and an incorrectly cited, inapplicable authority, violating the duty of candor under Code of Civil Procedure section 128.7(b)(2).
This case illustrates the judicial response to the submission of AI-generated fake citations in California state court. It highlights the risk of summary judgment opposition being undermined by unverified research and the potential for professional sanctions under procedural rules governing attorney conduct.
Failure modes and consequences
- Hallucinated_case_law
- Misrepresented_authority
- Fake Citations
- Misrepresented Authority
- Contract
- Trial
- AI attribution
- Implied
- Recorded tool
- AI (unspecified)
- Known monetary consequence
- Not recorded
- Procedural posture
- The court granted the defendant's motion for summary judgment and simultaneously issued an Order to Show Cause regarding sanctions against plaintiffs' counsel, with a hearing scheduled for December 9, 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 court noted the citations were likely generated by AI tools.
The record summarizes the outcome described in the linked public source. The recorded document is hosted in the upstream publisher archive. This page is not a substitute for the complete docket, subsequent history, or jurisdiction-specific advice.
Latest evidence review: Primary Document Verified (high confidence).
Controls suggested by the public record
- Implement mandatory verification protocols for all case law citations, including cross-referencing against official reporters.
- Establish a review process to ensure that cited authorities directly support the specific legal propositions asserted in filings.
- Require counsel to certify that all research, including AI-assisted output, has been independently verified for accuracy and existence.
- Monitor court-issued tentative rulings and orders for judicial feedback regarding the quality and accuracy of legal research.