Oregon Supreme Court dismisses petition over AI-generated fake legal citations

Oregon's Supreme Court dismissed parts of two cases after lawyers filed documents with AI-generated fake citations, including cases that don't exist. It's the first time the state's high court has directly ruled on false AI content in court filings.

Categorized in: AI News Legal
Published on: Jun 06, 2026
Oregon Supreme Court dismisses petition over AI-generated fake legal citations

Oregon Supreme Court Dismisses Case Over AI-Generated Fake Citations

Oregon's Supreme Court struck down parts of two cases Friday after lawyers submitted documents containing fabricated legal citations generated by AI tools. The ruling marks the first time the state's high court has directly addressed false information from artificial intelligence in court filings.

In the first case, plaintiffs used LegalAI to submit a petition for a writ of mandamus that cited cases that don't exist and included fake quotes. When ordered to resubmit corrected paperwork, they filed again with citations to at least four nonexistent cases within 12 hours.

The court dismissed the petition. In the second case, a respondent filed a document with unverifiable legal arguments. The court fined that respondent $500 and allowed resubmission.

A Growing Problem Across the Country

Researchers estimate more than 1,000 cases nationwide contain inaccuracies from AI tools. The issue affects both lawyers and people representing themselves in court.

Last summer, lawyers for MyPillow's chief executive were each fined $3,000 in federal court for submitting filings with dozens of errors generated by AI. An Oregon lawyer faced a steeper penalty: $110,000 in district court, the highest fine imposed to date for AI-related mistakes.

Meagan A. Flynn, Chief Justice of the Oregon Supreme Court, said in a statement that AI tools "may seem like an appealing short-cut to legal research and presenting legal arguments." She added: "But when the court has to spend considerable time and effort addressing fabricated legal arguments, it comes at the expense of other cases."

Hidden Costs Beyond Court Time

Ankur Doshi, General Counsel of the Oregon State Bar, told local media in April that the problem extends beyond wasted judicial resources. Opposing counsel must verify citations, which increases their workload and can drive up attorney fees for clients.

Many people don't realize AI is generating false cases. Courts must then spend time determining what happened before proceeding with the actual legal matter.

For legal professionals using AI tools for research or document preparation, verification remains essential. AI for Legal professionals requires understanding both the capabilities and limitations of these systems. Those working in legal support roles may find AI Learning Path for Paralegals helpful for navigating these tools responsibly.


Get Daily AI News

Your membership also unlocks:

700+ AI Courses
700+ Certifications
Personalized AI Learning Plan
6500+ AI Tools (no Ads)
Daily AI News by job industry (no Ads)