HISPI Project Cerebellum HISPI PROJECT CEREBELLUM

AI Misuse: Inaccurate Quotes and Errors in Assistant U.S. Attorney's Response Brief

March 2, 2026

In the case of Fivehouse v. U.S. Department of Defense, the court reportedly found fabricated quotations and misstatements of case holdings in a response brief filed by Assistant U.S. Attorney Rudy Renfer. Renfer admitted using AI to draft the incorrect filing after losing an earlier draft. The court also identified similar fabricated quotations in other filings signed by Renfer. It's crucial to emphasize the importance of responsible AI usage and guardrails for AI to prevent such incidents. Through HISPI Project Cerebellum TAIM, contributors—JOIN US—can learn more about AI governance, trustworthy AI, and harm prevention.
Alleged deployer
united-states-attorney's-office-for-the-eastern-district-of-north-carolina, rudy-renfer
Alleged developer
unknown-large-language-model-developers
Alleged harmed parties
judicial-integrity, epistemic-integrity, derence-v.-fivehouse

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Source

Data from the AI Incident Database (AIID). Cite this incident: https://incidentdatabase.ai/cite/1434

Data source

Incident data is from the AI Incident Database (AIID).

When citing the database as a whole, please use:

McGregor, S. (2021) Preventing Repeated Real World AI Failures by Cataloging Incidents: The AI Incident Database. In Proceedings of the Thirty-Third Annual Conference on Innovative Applications of Artificial Intelligence (IAAI-21). Virtual Conference.

Pre-print on arXiv · Database snapshots & citation guide

We use weekly snapshots of the AIID for stable reference. For the official suggested citation of a specific incident, use the “Cite this incident” link on each incident page.