Norwegian Supreme Court Receives Legal Filing with Fabricated Citations Allegedly Generated by AI Tool

April 10, 2025

In early 2025, Norway's Supreme Court (Høyesterett) encountered a legal filing with fabricated citations and quotes allegedly generated by an AI tool. The false sources were detected during routine review. Although no sanctions were imposed, the Court updated its guidance to lawyers, emphasizing that AI utilization does not absolve them from professional accountability. In light of such incidents, promoting responsible AI governance, safe and secure AI practices, and the use of Project Cerebellum's AI incident database for harm prevention becomes increasingly important.

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This incident highlights the need for HISPI Project Cerebellum TAIM (Govern) to ensure proper guidelines are established and adhered to in order to prevent similar occurrences.

Matched TAIM controls

Suggested mapping from embedding similarity (not a formal assessment). Browse all TAIM controls

Alleged deployer
unnamed-norwegian-lawyer
Alleged developer
unspecified-generative-ai-developer
Alleged harmed parties
supreme-court-of-norway, hoyesterett, unnamed-clients-represented-by-unnamed-norwegian-lawyer, legal-integrity

Source

Data from the AI Incident Database (AIID). Cite this incident: https://incidentdatabase.ai/cite/1027

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.