What is an emotion recognition system?
An emotion recognition system is an AI system that identifies or infers the emotions or intentions of natural persons on the basis of their biometric data: facial expressions, voice patterns, keystrokes, gait or other physiological signals (AI Act, Article 3(39)). Two elements must both be present: the output — an emotion or intention attributed to a person — and the biometric input. The Act treats the technology with unusual severity, because emotional inference from physiology is scientifically contested and reaches into an intimate layer of personal data.
The ban and what survives it
Use in workplaces and educational institutions is a prohibited practice under Article 5, applicable since 2 February 2025, save for narrow medical or safety purposes — one of the prohibited AI practices that apply regardless of any risk classification. Outside the ban:
- Remaining permitted uses (customer-facing analytics, for example) are high-risk under Annex III — see high-risk AI system — with the postponed compliance runway running to December 2027;
- Persons exposed to a permitted system must be notified under Article 50 from August 2026;
- Inferring mood from typed text alone, without biometric data, generally falls outside the definition.
The legal dimension
Context decides everything. The same voice-analytics engine is prohibited when pointed at employees and high-risk when pointed at customers, so product teams should classify by who is exposed, not by feature name. The neighbouring definition of biometric categorisation — sorting people into groups on the basis of biometric data — draws its own rules, and many products trip both definitions at once. For permitted uses, conformity duties sit with the provider while notification and oversight duties sit with the deployer; a vendor’s marketing label (“engagement analytics”) does not change the legal analysis.
Turkish context
Türkiye has no AI-specific statute in force, so the question for Turkish companies is twofold. First, the AI Act reaches them when their system is placed on the EU market or affects persons in the Union. Second, the biometric inputs are special-category data under KVKK, and KVKK’s biometrics jurisprudence (including the 2026 decisions) applies regardless of the AI Act. HR-tech products should treat employee emotion analytics as effectively off the table in both jurisdictions.
Do: map who is exposed before classifying the product, and treat facial, voice and keystroke inputs as special-category data from day one. Don’t: offer workplace or classroom emotion analytics into the EU, and don’t assume employee consent cures the problem under KVKK.
Related guides: Already Illegal.
Sources. Regulation (EU) 2024/1689 (AI Act) and Law No. 6698 on the Protection of Personal Data (KVKK). Statute links open the official consolidated Turkish texts on mevzuat.gov.tr.