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https://www.productionai.institute/graph/events/evt-aiid-1453

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Production AI Institute public record · AI Incident Database: Attorney in Fletcher v. Experian Information Solutions, Inc. Reportedly Submitted Reply Brief with Purportedly AI-Generated Material Misrepresentations · observed 2026-06-24
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incident event
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AI Incident Database: Attorney in Fletcher v. Experian Information Solutions, Inc. Reportedly Submitted Reply Brief with Purportedly AI-Generated Material Misrepresentations

In Fletcher v. Experian Information Solutions, Inc., the Fifth Circuit found that attorney Heather Hersh had used generative AI to draft a substantial portion of a reply brief that contained fabricated legal support and factual representations. The court first issued a show-cause order and later imposed a $2,500 sanction, linking the filing errors to unverified AI-generated output.

AI Incident Database · Incident 1453

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

Confidence
82%
Sources
3
Entities
7
Detected
detected 23d ago

Event summary

In Fletcher v. Experian Information Solutions, Inc., the Fifth Circuit found that attorney Heather Hersh had used generative AI to draft a substantial portion of a reply brief that contained fabricated legal support and factual representations. The court first issued a show-cause order and later imposed a $2,500 sanction, linking the filing errors to unverified AI-generated output.

D2D6

Linked entities

  • large-language-model-developers

    organisation | 70%

  • heather-hersh

    organisation | 70%

  • united-states-court-of-appeals-for-the-fifth-circuit

    organisation | 70%

  • judicial-integrity

    organisation | 70%

  • james-fletcher

    organisation | 70%

  • experian-information-solutions-inc.

    organisation | 70%

  • epistemic-integrity

    organisation | 70%

Related graph edges

EdgeTypeConfidence
ent-aiid-large-language-model-developers to ent-psf-d1maps to60%
ent-aiid-large-language-model-developers to ent-psf-d1maps to60%
ent-aiid-large-language-model-developers to ent-psf-d1maps to60%
ent-aiid-large-language-model-developers to ent-psf-d2maps to60%
ent-aiid-large-language-model-developers to ent-psf-d2maps to60%
ent-aiid-large-language-model-developers to ent-psf-d2maps to60%
ent-aiid-large-language-model-developers to ent-psf-d6maps to60%
ent-aiid-large-language-model-developers to ent-psf-d6maps to60%
ent-aiid-large-language-model-developers to ent-psf-d6maps to60%
ent-aiid-large-language-model-developers to ent-psf-d1maps to60%
ent-aiid-large-language-model-developers to ent-psf-d1maps to60%
ent-aiid-large-language-model-developers to ent-psf-d1maps to60%

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Event dates

  • Happened 18 Dec 2025

  • Detected 24 June 2026

Sources

  • AI Incident Database - Incident 1453

    secondary | checked 9 July 2026

    Open source
  • Fifth Circuit Sanctions Lawyer for AI-Generated Brief

    secondary | checked 24 June 2026

    Open source
  • US appeals court orders lawyer to pay $2,500 over AI hallucinations in brief

    primary | checked 18 Apr 2026

    Open source
Cite this record

"AI Incident Database: Attorney in Fletcher v. Experian Information Solutions, Inc. Reportedly Submitted Reply Brief with Purportedly AI-Generated Material Misrepresentations." https://www.productionai.institute/graph/events/evt-aiid-1453 (observed 2025-12-18; retrieved 2026-07-17). PAI.

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