D.C. Court Flags Lawyer Liability for AI-Generated Fake Citations
D.C. Court struck a brief for AI-generated fake citations, stressing lawyer responsibility.
Why it matters: With AI tools increasingly used in legal work, this highlights attorneys' duty to verify AI-generated content to avoid professional risks and maintain court integrity.
- On Sept 3, 2026, D.C. Court of Appeals struck Deutsche Bank's appellate brief for fake AI citations.
- Attorney Loishirl W. Hall admitted using Google AI search tool without verifying citations first.
- Court held all attorneys who signed the brief responsible for including false citations.
- Judge Stephen Glickman urged courts to consider stronger sanctions for AI-generated falsehoods in legal filings.
In Douglas v. Deutsche Bank National Trust Co., the District of Columbia Court of Appeals addressed a landmark issue: attorney responsibility for AI-generated hallucinations in legal briefs. The court struck an appellate brief filed on behalf of Deutsche Bank National Trust Company that cited numerous nonexistent cases. The citations were later proven to be inventions of a generative AI search tool.
Attorney Loishirl W. Hall of McCabe, Weisberg & Conway, LLC, representing Deutsche Bank, conceded during proceedings that she used Google's generative AI search tool to find case authority but failed to verify the citations before submitting the brief. This reliance on AI without proper fact-checking led to the filing of fabricated citations.
The court made clear that all attorneys who signed the brief share responsibility for these inaccuracies, emphasizing that blind reliance on AI tools does not absolve legal professionals from verifying their filings. As the court stated, "What began as a routine appeal has become a cautionary tale about the misuse of artificial intelligence (AI) and its consequences for attorneys, their clients, and the courts."
Judge Stephen Glickman, in a concurring opinion, underscored the issue by declaring, "The use of artificial intelligence must be accompanied by the application of actual intelligence in its execution." He also highlighted the court's need to consider stronger sanctions to deter submission of fabricated citations, suggesting current penalties may be insufficient to address AI-based errors fully.
This ruling signals an important shift for attorneys incorporating AI into legal research and drafting. While AI tools can aid efficiency, the ultimate responsibility for accuracy and integrity in legal submissions remains firmly with the lawyer.
By the numbers:
- September 3, 2026 — Date the D.C. Court struck the brief
- One — AI tool (Google's generative search) admitted used without verification
- Multiple — Nonexistent cases cited in the Deutsche Bank brief
Yes, but: While the court struck the brief and emphasized responsibility, there are no public reports of further disciplinary sanctions against the attorneys yet.
What's next: The court is considering how to expand its authority to sanction attorneys for AI-generated fabricated citations, with further guidance expected.