Buenos Aires's Fugitive Facial Recognition System, stopped by the courts
The city switched on the Sistema de Reconocimiento Facial de Prófugos on 24 April 2019, matching live feeds from about 300 of its cameras — Subte stations first — against CONARC, the national fugitives list. CONARC carries names & ID numbers but no photographs, so reference faces were drawn from the national identity registry, RENAPER. The city says the system put 1,695 people in the hands of the courts; the judicial file showed the security ministry had pulled roughly 9.9 million biometric records covering some 7.5 million people, among them journalists, politicians, judges and activists. A city judge suspended it in April 2022, a second declared its implementation unconstitutional in September 2022, and the appeals court confirmed that on 28 April 2023. It has not run since.
City figure: 1,695 people identified and handed to the courts, April 2019 to April 2022 (Buenos Aires city government, via Chequeado). Court record: 9,392,372 biometric queries to RENAPER between 25 April 2019 and 20 December 2021, plus 507,911 more to 9 March 2022, covering about 7.5 million people — against a CONARC list of 35,000-40,000 — including at least 15,459 searches of people not on that list.
🎓 Lesson
A statutory limit is only worth the body that enforces it. The law confined the system to people on CONARC, but the Legislature's oversight commission was never seated and the ombudsman's audit never happened, so the nine million queries surfaced only once a court demanded the logs.
Evidence📊 Independent
Scale🏙️ City-wide
Sources
↗ Human Rights Watch — letter to the Mayor of Buenos Aires on the facial recognition system and children's rights9 Oct 2020. Sources the launch date ("began operating on April 24, 2019"), the ~300-camera deployment inside a network of nearly 13,000, and the mechanism: CONARC "lacks photographs of charged individuals, so the system pulls reference images from Argentina's population registry." Also the minors finding — "at least 166 children have been listed in CONARC between May 2017 and May 2020" — against the city's denial that CONARC held data on minors. Fetched successfully.
↗ Chequeado — Por qué se suspendió el sistema de reconocimiento facial de la Ciudad de Buenos AiresIndependent Argentine fact-checking outlet. Carries the city's own claim verbatim — "1.695 personas fueron identificadas y puestas a disposición de la Justicia" — alongside the court's finding of "más de 9 millones de consultas" against a CONARC of "entre 35 mil y 40 mil registros", and the searches for the President, Vice-President, politicians, activists, judges and journalists. Fetched successfully.
↗ CELS — Una jueza declaró inconstitucional el uso del sistema de reconocimiento facial en CABALitigant NGO, so read as a party — but it is the clearest statement of the grounds: the Comisión Especial de Seguimiento was never constituted in the Legislature, the Defensoría del Pueblo produced no reports, and no impact assessment preceded deployment. Dates the first-instance ruling 7 September 2022 (Judge Elena Liberatori). Fetched successfully. Date caveat: El Cohete a la Luna gives 28 September and the law firm Marval dates the judgment 26 October 2022 — the entry therefore says "September 2022" rather than a day.
↗ Future of Privacy Forum — Judge declares Buenos Aires' Fugitive Facial Recognition System unconstitutionalIndependent legal analysis of the judgment; the sentence-level source for the exact figures used in impact — "9,392,372" biometric requests to RENAPER and "at least 15,459" searches of non-fugitives — and for the statutory frame (Leyes 5.688 and 6.339, Convention 108, art. 43 of the national Constitution). Also records the city's position that there were no wrongful detentions, against the Public Defender's documented one-to-three-hour detentions from false positives. Fetched successfully.
↗ CELS (English) — Court of Appeals confirms the unconstitutionality of the SRFPChamber I of the Court of Appeals, 28 April 2023, rejecting the appeals of the city government and the public prosecutor. Sets the three conditions on any restart: "establishment and proper functioning of oversight bodies", investigation of "differentiated impact depending on the personal features", and that the "system should be publicized and its operation should be reported". Fetched successfully.
↗ Marval O'Farrell Mairal — Se declara inconstitucional el Sistema de Reconocimiento Facial de PrófugosLaw-firm analysis, used for the instruments actually applied: national data protection Law 25.326, the city's public-sector data protection Law 1.845, and Convention 108, plus the requirement of a data protection impact assessment before any re-implementation. Dates the judgment 26 October 2022, which conflicts with CELS and FPF — flagged rather than reconciled. Fetched successfully.
↗ elDiarioAR — La Justicia define si vuelve el reconocimiento facial en las calles de Buenos Aires19 Feb 2024, opinion/analysis. Confirms the system was still suspended and that an execution-of-judgment hearing was being held to fix audit conditions; notes the UN Special Rapporteur on Privacy asked for an impact assessment during a visit. A vendor name (Danaide) appears here only and was not carried into the entry. Fetched successfully.
↗ El Cohete a la Luna — El panóptico porteño12 Oct 2025 — the most recent confirmation located that the SRFP remains halted, and the clearest account of why: a deadlock over audit method, the city offering a black-box audit without source-code access while civil society demands scrutiny for bias and vulnerabilities. Politically committed outlet; used for status and the audit dispute, not for figures. Fetched successfully.
↗ El Grito del Sur — La Ciudad reaviva el ojo electrónico: reconocimiento facial y control social en CABA7 Oct 2025. Kept for one negative finding that prevents a false 'restart' claim: the 2025 facial-recognition purchase in Buenos Aires (Clearview AI, US$27,588) was made by the Ministerio Público Fiscal for images already in evidence, a different body and a different use from the SRFP's live street matching. Fetched successfully.
📎 Cite this project
1001 Smart Cities (2026). “Buenos Aires's Fugitive Facial Recognition System, stopped by the courts” — Buenos Aires, Argentina. The Smart City Atlas. https://1001smartcities.org/projects/buenos-aires-facial-recognition/ (last verified 2026-07-26). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.
