
In a lawsuit over a 2020 Houston explosion that killed three people, 3M's hired expert witness Josh Autenrieth used ChatGPT to compose up to 90% of his $90,000 expert report defending 3M. The explosion at Watson Grinding led to claims that 3M failed to maintain the gas detection system properly. Discovery revealed extensive ChatGPT prompts used by Autenrieth to draft the report and analyze technical details. While 3M's engineering firm defends his professional judgment, plaintiffs argue the AI-generated report undermines the case's credibility and raises questions about expert witness standards.