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In the Interest of W.G., Minor Child

Court
CA Iowa
Jurisdiction
USA
Decided
2026-04-01
AI tool
Perplexity
Outcome
—
Monetary penalty
None reported

What was hallucinated

Misrepresented: Case Law | AI attributed specific propositions of law to a cited case where those propositions did not appear (misattribution of holdings/authority). || Fabricated: Case Law | Petition included at least one citation to a nonexistent Iowa appellate decision; court found citation was fabricated and ordered disclosure.

Sanction teardown · CA Iowa, USA · 2026-04-01

In the Interest of W.G., Minor Child

What happened

In CA Iowa, USA, a filing relied on Perplexity to help draft legal argument. The court identified the following problems with the citations in that filing:

  • Misrepresented (Case Law)
    AI attributed specific propositions of law to a cited case where those propositions did not appear (misattribution of holdings/authority).
  • Fabricated (Case Law)
    Petition included at least one citation to a nonexistent Iowa appellate decision; court found citation was fabricated and ordered disclosure.

Which AI tool

Perplexity. Note: Charlotin's public database records tool attribution only where a court order, brief, or reporting on the matter states it explicitly; "unidentified" or "implied" means the record indicates AI use but does not name a specific product — we do not guess.

Outcome

Not specified in source record.

How Citation Safe would have caught this

Citation Safe runs three deterministic layers before a brief is filed: (1) does the citation exist against CourtListener's database of published opinions, (2) if quoted, does that exact language appear in the source, (3) does the cited case actually support the proposition it is cited for. Fabricated case citations fail Layer 1. Fabricated or misattributed quotations fail Layer 2 even when the underlying case is real. Misrepresented holdings — a real case cited for a proposition it does not support — are the target of Layer 3. None of these checks involve asking another language model whether the citation looks right; they are lookups and text-matches against the actual source, which is why a hallucinated citation has to survive a direct lookup against the authoritative source — not another model's opinion — to earn a VERIFIED stamp; our measured false-verify rate is published live at /quality.

Check a brief before you file it → · See our live false-verify rate

Source: https://www.damiencharlotin.com/documents/1895/Interest_of_WG_USA_1_April_2026.pdf, via Damien Charlotin's public AI Hallucination Cases Database (CC0).

Source: https://www.damiencharlotin.com/documents/1895/Interest_of_WG_USA_1_April_2026.pdf

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