mata-v-avianca-6-fake-precedents-5000-fine-frcp-11

IN premise — summaries/2026/08/24/wiki-Hallucination_artificial_intelligence-chunk-2.md

Created 2026-08-24T17:11:12+00:00

In Mata v. Avianca (S.D.N.Y., 2023), the court dismissed the case and imposed a $5,000 fine for 6 fabricated precedents, citing Federal Rule of Civil Procedure 11 as the operative standard.

Summary

This records a real 2023 New York federal case where a litigant was caught submitting six made-up legal citations and hit with a $5,000 sanction under the federal rule requiring lawyers to certify that every legal reference they cite actually exists. It matters because it pins down both the enforcement mechanism (FRCP 11) and a concrete penalty amount the system can reference when assessing the real-world consequences of citing non-existent authority.