Sanction teardown · D. New Jersey, USA · 2025-08-15
Clonan v. Centrastate Healthcare system
What happened
In D. New Jersey, USA, a filing relied on Westlaw (and others unidentified) to help draft legal argument. The court identified the following problems with the citations in that filing:
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IssueFalse Quotes: Case Law
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IssueFalse Quotes: Case Law
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IssueFalse Quotes: Case Law
Which AI tool
Westlaw (and others unidentified). 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
Warning
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/712/Clonan_v._Centrastate_Healthcare.pdf, via Damien Charlotin's public AI Hallucination Cases Database (CC0).