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https://www.productionai.institute/graph/events/evt-aiid-1027

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Production AI Institute public record · AI Incident Database: Norwegian Supreme Court Receives Legal Filing with Fabricated Citations Allegedly Generated by AI Tool · observed 2025-04-15
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AI Incident Database: Norwegian Supreme Court Receives Legal Filing with Fabricated Citations Allegedly Generated by AI Tool

In early 2025, Norway’s Supreme Court (Høyesterett) received a legal filing containing hallucinated legal citations and quotes, allegedly inserted by an attorney using an AI tool without verification. The fabricated sources were detected during standard review. While no sanctions were issued, the Court updated its guidance to lawyers, warning that AI use does not exempt them from professional responsibility.

AI Incident Database · Incident 1027

Operator lens (medium): inspect D2 (output validation), D6 (autonomy oversight).

Confidence
78%
Sources
2
Entities
6
Detected
detected 460d ago

Event summary

In early 2025, Norway’s Supreme Court (Høyesterett) received a legal filing containing hallucinated legal citations and quotes, allegedly inserted by an attorney using an AI tool without verification. The fabricated sources were detected during standard review. While no sanctions were issued, the Court updated its guidance to lawyers, warning that AI use does not exempt them from professional responsibility.

D2D6

Linked entities

  • unspecified-generative-ai-developer

    organisation | 70%

  • unnamed-norwegian-lawyer

    organisation | 70%

  • supreme-court-of-norway

    organisation | 70%

  • hoyesterett

    organisation | 70%

  • unnamed-clients-represented-by-unnamed-norwegian-lawyer

    organisation | 70%

  • legal-integrity

    organisation | 70%

Related graph edges

EdgeTypeConfidence
ent-aiid-unspecified-generative-ai-developer to ent-psf-d2maps to60%
ent-aiid-unspecified-generative-ai-developer to ent-psf-d2maps to60%
ent-aiid-unspecified-generative-ai-developer to ent-psf-d2maps to60%
ent-aiid-unspecified-generative-ai-developer to ent-psf-d6maps to60%
ent-aiid-unspecified-generative-ai-developer to ent-psf-d6maps to60%
ent-aiid-unspecified-generative-ai-developer to ent-psf-d6maps to60%

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Event dates

  • Happened 10 Apr 2025

  • Detected 15 Apr 2025

Sources

  • AI Incident Database - Incident 1027

    secondary | checked 9 July 2026

    Open source
  • Høyesterett har mottatt sitt første prosesskriv med oppdiktede kilder

    secondary | checked 15 Apr 2025

    Open source
Cite this record

"AI Incident Database: Norwegian Supreme Court Receives Legal Filing with Fabricated Citations Allegedly Generated by AI Tool." https://www.productionai.institute/graph/events/evt-aiid-1027 (observed 2025-04-10; retrieved 2026-07-19). PAI.

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