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NACDL says criminal defense lawyers have an ethical duty to use AI

Published
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19

Why it matters

The National Association of Criminal Defense Lawyers released a white paper on July 30, 2026, arguing that criminal defense attorneys have an ethical duty to use generative AI responsibly—not merely to avoid AI mistakes. The paper, Parity in Practice: The Defender's Duty to Ethically Use AI, maps AI deployment to the ABA Model Rules of Professional Conduct, covering competence, confidentiality, and candor to the court. Authored by Mason Clark, an assistant professor at St. Mary's School of Law, the report includes practical guidance on vendor vetting, staff training, courtroom use, and office-wide AI policies.

NACDL frames AI adoption as a matter of professional parity. The organization argues that criminal defense lawyers risk falling short of constitutional and ethical standards if they fail to adopt tools already available to prosecutors. The paper acknowledges real barriers—cost, training requirements, and privacy concerns—and identifies specific risks including confidentiality breaches, accuracy failures, and bias. It stops short of mandating AI use but positions responsible adoption as part of the duty of competence.

Defense counsel should treat this as a signal that AI adoption is moving from optional to expected. As courts and bar associations tighten scrutiny of AI errors in litigation, NACDL's framing creates a countervailing pressure: failing to use AI tools may itself become an ethics problem. Attorneys should review the model AI-use policy included in the report's appendix and begin assessing their own practices against the ABA Model Rules framework NACDL has outlined. The tension between these two risks—AI mistakes and AI avoidance—will likely shape ethics guidance and malpractice exposure for years.

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