---
title: "New Mexico lawyer fined for using AI-generated brief containing fabricated testimony"
slug: "us-anwalt-wegen-ai-generiertem-schriftsatz-mit-erfundenen-zeugenaussagen-bestraft"
date: 2026-09-11
category: tech-pub
tags: [openai, regulation]
language: en
sources_count: 1
featured: false
publisher: AInauten News
url: https://news.ainauten.com/en/story/us-anwalt-wegen-ai-generiertem-schriftsatz-mit-erfundenen-zeugenaussagen-bestraft
---

# New Mexico lawyer fined for using AI-generated brief containing fabricated testimony

**Published**: 2026-09-11 | **Category**: tech-pub | **Sources**: 1

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## TL;DR

Stephen Aarons said he tried to use ChatGPT to create a ‘bulletproof summary’ during a murder conviction appeal A defense lawyer appealing his client’s murder conviction submitted a legal brief containing ⁠made-up police testimony and ⁠witnesses fabricated by OpenAI’s ChatGPT, ​New Mexico’s highest court said.

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## Summary

Stephen Aarons said he tried to use ChatGPT to create a ‘bulletproof summary’ during a murder conviction appeal A defense lawyer appealing his client’s murder conviction submitted a legal brief containing ⁠made-up police testimony and ⁠witnesses fabricated by OpenAI’s ChatGPT, ​New Mexico’s highest court said. The New Mexico supreme court on Wednesday fined the attorney, Stephen Aarons, and held him in contempt for failing to verify the accuracy of the court ⁠filing, which Aarons said he prepared with help from the artificial intelligence (AI) application. Continue reading...

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## Why it matters

Stephen Aarons said he tried to use ChatGPT to create a ‘bulletproof summary’ during a murder conviction appeal A defense lawyer appealing his client’s murder conviction submitted a legal brief containing ⁠made-up police testimony and ⁠witnesses fabricated by OpenAI’s ChatGPT, ​New Mexico’s highest court said. The New Mexico supreme court on Wednesday fined the attorney, Stephen Aarons, and held him in contempt for failing to verify the accuracy of the court ⁠filing, which Aarons said he prepared with help from the artificial intelligence (AI) application.

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## Key Points

- Stephen Aarons said he tried to use ChatGPT to create a ‘bulletproof summary’ during a murder conviction appeal A defense lawyer appealing his client’s murder conviction submitted a legal brief contai

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## Nauti's Take

Anyone using AI in legal or other evidence-critical workflows needs a hard chain of provenance: every factual claim must lead back to an original document and pass human review. For a small team, the first test should be a controlled process with source fields, independent checking, and explicit approval before AI-generated text enters an official filing or decision.

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## FAQ

**Q:** What is New Mexico lawyer fined for using AI-generated brief containing fabricated testimony about?

**A:** Stephen Aarons said he tried to use ChatGPT to create a ‘bulletproof summary’ during a murder conviction appeal A defense lawyer appealing his client’s murder conviction submitted a legal brief containing ⁠made-up police testimony and ⁠witnesses fabricated by OpenAI’s ChatGPT, ​New Mexico’s highest court said.

**Q:** Why does it matter?

**A:** Stephen Aarons said he tried to use ChatGPT to create a ‘bulletproof summary’ during a murder conviction appeal A defense lawyer appealing his client’s murder conviction submitted a legal brief contai

**Q:** What are the key takeaways?

**A:** See summary above.

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## Related Topics

- [openai](https://news.ainauten.com/en/tag/openai)
- [regulation](https://news.ainauten.com/en/tag/regulation)

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## Sources

- [New Mexico lawyer fined for using AI-generated brief containing fabricated testimony](https://www.theguardian.com/technology/2026/sep/11/new-mexico-lawyer-ai-chatgpt-testimony) - The Guardian AI

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## About This Article

This article is a synthesis of 1 sources, curated and summarized by AInauten News. We aggregate AI news from trusted sources and provide bilingual (German/English) coverage.

**Publisher**: [AInauten](https://www.ainauten.com) | **Site**: [news.ainauten.com](https://news.ainauten.com)

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*Last Updated: 2026-09-11*