Apelacao Civel 0035599-44.2017.8.16.0014 (TJPR)
·Tribunal de Justica do Parana (monocratic decision)·BRDismissal
A judge of the Tribunal de Justica do Parana in Brazil refused to hear a consumer appeal whose brief relied on what the decision called creative jurisprudence produced by AI, including an unlocatable Santa Catarina precedent and an unverifiable headnote. The appeal was not admitted for lack of dialecticity and the state bar was notified for professional measures.
- Court
- Tribunal de Justica do Parana (monocratic decision)
- Date
- 2026-07-22
- Who used the AI
- Lawyer
- AI tool
- Not identified in the record
- Conduct
- Appellant's counsel reproduced an unverifiable headnote (ementa) and cited a Santa Catarina precedent (ApCv 2003.001444-6) that could not be located and was likely invented, which the judge attributed to the use of AI producing 'creative jurisprudence'.
- Outcome
- Dismissal
- Penalty
- No monetary penalty recorded
- Regulatory outcome
- OAB/PR: Oficio sent to the Parana section of the Brazilian Bar for possible professional measures. No disposition on record. (2026-07-22)
- Status
- Verified against listed sources
- Last checked
- 2026-09-03
Primary sources for this incident
Related regulation records for this incident
No related regulation record has been linked to this incident yet.
Cite this record
SafeLegalAI Global Legal AI Incident Tracker, “Apelacao Civel 0035599-44.2017.8.16.0014 (TJPR)”, safelegalai.com/tracker/tjpr-0035599-44 (accessed 2026-09-04). Data: CC BY 4.0.