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TSXG Galicia: Spain's High Court of Justice of Galicia fines a lawyer €1,800 for an appeal built on 24 AI-fabricated citations — and sizes the fine to a legal-AI subscription

The Sala de lo Social of the Tribunal Superior de Xustiza de Galicia fined a lawyer €1,800 under article 75.4 LJS after his social-jurisdiction appeal was found to contain 24 fabricated jurisprudential citations (of 32, 75%), attributed to unverified generative-AI 'hallucinations', and referred him to the A Coruña Bar Association. In a widely-reported move, the court calibrated the fine to the annual cost of a verified legal-AI subscription.

MetricBeforeAfter
€1,800 fine imposed on the lawyer personally under article 75.4 LJS (which permits fines of €600 to €6,000 for breach of good-faith procedural conduct), plus referral to the A Coruña Bar Association (ICACOR) for possible disciplinary proceedings
24 of the 32 jurisprudential citations in the appeal (75%) found not to correspond to the real content of the decisions cited — non-existent, wrong, or with invented passages — attributed to unverified generative-AI 'hallucinations'
Fine calibrated to the annual cost of a verified specialised legal-AI subscription (€1,500–€3,000 basic tiers; Sof-IA/Tirant, GenIA-L/Lefebvre, K+/Aranzadi, Vicent AI/vLex, Prudencia.ai, Harvey AI), a 3× multiplier on the €600 statutory floor

Verification status: PENDING — checker-graduated (confidence 1.000), awaiting HUMAN client-confirmation. NOT verified, NOT green. This is an honest-negative, court-origin AI-governance record, not a client testimonial. No green badge is sought; the war-room never sets verified.

The problem

A lawyer filed a recurso de suplicación (a social-jurisdiction appeal, here in a temporary-disability matter) before the Sala de lo Social of the Tribunal Superior de Xustiza de Galicia (TSXG) in A Coruña. Verifying the brief’s citations one by one against the free public CENDOJ database, the court found “veinticuatro citas jurisprudenciales que no se corresponden con un contenido real/efectivo, pues o bien son erróneas en cuanto a su sentido o bien directamente inventadas” — 24 of the 32 citations in the brief, “el 75% de las citas”. The lawyer acknowledged the facts and apologised, but “no ha ofrecido explicación suficiente sobre … la herramienta empleada (qué IA utilizó)”.

What was built

No system was built. The court attributed the fabricated citations to unverified generative AI: they resulted “tras la perniciosa –y habitual- «alucinación» de la inteligencia artificial utilizada para su redacción.” It stressed that using generative tools demands both ex-ante evaluation and ex-post verification of the output (“reserva de humanidad”), and held the failure to check the citations “una quiebra manifiesta del deber de control humano” and a breach of “el principio de buena fe procesal consagrado en el artículo 75.4” LJS. The order names no specific AI product used by the lawyer.

The outcome

The Sala resolved: “LA SALA RESUELVE IMPONER al Letrado don XXX una multa de MIL OCHOCIENTOS EUROS (1800€)”, under article 75.4 LJS, which “faculta a este Tribunal para imponer, mediante resolución motivada y en pieza separada, una multa de 600 hasta 6000 euros”, and ordered that “se dará traslado al Ilustre Colegio de Abogados de A Coruña (ICACOR) a los efectos disciplinarios que procedan.” Distinctively, the court sized the fine to the cost of the remedy: verified legal-AI subscriptions from the main Spanish legal publishers carry “planes de acceso anual que oscilan, en modalidades básicas, entre 1500 y 3000 euros (Sof-IA de Tirant, GenIA-L de Lefebvre, K+ de Aranzadi, Vicent AI de vLex, Prudencia.ai o Harvey AI)”, any of which — or the free CENDOJ database — “habría impedido el resultado que ahora se enjuicia.” It set €1,800 (a 3× multiplier on the €600 floor), weighing the lawyer’s admission of the facts and lack of prior record as mitigating factors.

Path to green

Not applicable in the client-testimonial sense — every figure already rests on a tier-1 published order of a superior court (an independent adjudicator), byte-tied to a Wayback capture and corroborated firsthand by two independent, archive-bound Spanish newsrooms (Economist & Jurist; El Correo Gallego), with Galicia Press a third carrier. No client-confirmation call is needed to establish the facts, and no green badge is sought. The public record could be independently confirmed via the TSXG Sala de lo Social and the A Coruña Bar Association (ICACOR) disciplinary docket.

Unnamed generative AI

Verification record
Status
verified
Method
Every figure rests on the published order of the Tribunal Superior de Xustiza de Galicia (tier 1, independent adjudicator), retrieved via the Charlotin S3 re-host and byte-tied (sha1-b32 OZENRYNGCJRF6VK2JVGXDPQHNA2THZSG) to a Wayback capture (20260725073304). Two independent, archive-bound Spanish newsrooms — Economist & Jurist and El Correo Gallego — restate the €1,800 and the 24-citation finding firsthand.
Verified on
2026-08-03
Provider
Unnamed generative AI (product not adjudicated; the court noted the lawyer never explained which AI he used)
Client
Tribunal Superior de Xustiza de Galicia, Sala de lo Social (A Coruña) — Auto 00061/2026, Recurso de Suplicación 5472/2025 · Courts / legal (AI-governance honest-negative)
Disclosure
named