Turkey Extradition Law — Case Law, Legal Framework and Procedure

Extradition cases involving Turkey — Requested and Requesting State

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Turkey

Turkey Extradition Law & Case Law — 48 cases

27
As requested
state
21
As requesting
state
Case Law
Procedural Safeguards and Sufficiency of Extradition Documents in Extradition Proceedings under Turkish Law
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Summary
The case concerned an extradition request submitted by the Russian Federation against a person sought for the offence of establishing a criminal organization.The Ankara 33rd Heavy Penal Court found the extradition request admissible under Law No. 6706 and the bilateral treaty between Türkiye and the Russian Federation.The defence appealed, arguing inter alia that:- the extradition request contained contradictory and incomplete information;- the alleged conduct, place of commission, and applicable legal provisions were insufficiently specified;- the requested person risked politically motivated prosecution;- extradition could expose the requested person to torture, ill-treatment, or disproportionate punishment;- defence rights had been violated;- and proportionality and family circumstances had not been properly considered.The Turkish Court of Cassation held that:additional information and supporting evidence should have been requested from the Russian Federation;the alleged acts should have been concretely specified regarding place, time, and manner of commission;translated and certified evidentiary materials linking the requested person to the alleged offence should have been obtained;double criminality and limitation-period assessments required further clarification.The Court further found that:- the requested person had not properly been informed about consent-based extradition procedures;- defence rights had been restricted because extradition materials had not been properly disclosed;- specialty-principle guarantees had not been reflected in the judgment;- and the lower court failed to assess family integration, long-term residence, health conditions, and proportionality under Article 11(4) of Law No. 6706.The extradition admissibility judgment was therefore quashed.
16/09/2025 · Turkish Court of Cassation (Yargıtay), 4th Criminal Chamber · E. 2025/5784, K. 2025/13611
🇹🇷Turkey → 🇷🇺Russia
Rejected (procedural grounds)Extradition
Individualized Offence Assessment and Evidentiary Sufficiency in Extradition Proceedings under Turkish Law
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Summary
The case concerned an extradition request submitted by the French Republic against a person sought for multiple offences connected with:- international drug trafficking;- money laundering;- organized criminal activity;- cross-border financial transfers.French judicial authorities alleged that the requested person participated between 2017 and 2021 in a transnational narcotics and financial-crime organization involving cocaine trafficking and laundering of criminal proceeds between France and foreign jurisdictions.The Kırklareli 2nd Heavy Penal Court found the extradition request admissible under Law No. 6706.The defence appealed, arguing inter alia that:- no sufficiently convincing evidence linked the requested person to the alleged offences;- extradition would disproportionately affect the requested person’s family life and social integration in Türkiye under Article 11(4) of Law No. 6706.The Turkish Court of Cassation partially accepted the appeal. The Court held that:- the extradition request failed to adequately explain the underlying criminal investigations;- the factual allegations concerning where, when, and how the offences were allegedly committed were insufficiently specified;- certified translated evidentiary materials demonstrating the requested person’s connection to the offences had not been provided.The Court further emphasized that extradition admissibility must be separately assessed for each offence forming the basis of the extradition request.Because the lower court failed to individually analyze the extradition conditions for each alleged offence, the judgment was quashed.
14/05/2025 · Turkish Court of Cassation (Yargıtay), 10th Criminal Chamber · E. 2025/2713, K. 2025/5614
🇹🇷Turkey → 🇫🇷France
Rejected (procedural grounds)Extradition
Separate Offence Assessment and Sufficiency of Extradition Documents in Transnational Narcotics Extradition Proceedings
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Summary
The case concerned an extradition request submitted by the Kingdom of Spain against a Croatian national sought for:- drug trafficking;- membership in a criminal organization.Spanish judicial authorities alleged that the requested person participated in an international cocaine-trafficking network involving approximately 980 kilograms of cocaine transported from Brazil toward Spain through maritime routes.Spanish authorities issued:- an international arrest warrant;- a European Arrest Warrant;- and a provisional detention order.The requested person was apprehended in İstanbul following intelligence and operational cooperation involving Europol and Turkish anti-narcotics authorities. A forged passport was allegedly discovered during the arrest.The Kırklareli 1st Heavy Penal Court found the extradition request admissible under Law No. 6706.The defence appealed, arguing inter alia that:- the extradition request insufficiently specified the offences and applicable legal provisions;- the alleged offence may not have fallen within Spanish territorial jurisdiction because the narcotics seizure occurred on the high seas;- the organization offence had not been separately analyzed;- fair-trial and defence-right guarantees had not been sufficiently examined;- family and social integration circumstances had not been assessed under Article 11(4) of Law No. 6706.The Turkish Court of Cassation partially accepted these objections. The Court held that:- extradition admissibility must be separately assessed for each offence forming the basis of the request;- the lower court failed to separately evaluate the “membership in a criminal organization” allegation;- Spanish authorities had not sufficiently provided the applicable legal provisions and explanatory legal framework required under Article 12(2)(c) of the European Convention on Extradition;- supplementary information should therefore have been requested pursuant to Article 18(2) of Law No. 6706 and Article 13 ECE.The extradition admissibility judgment was therefore quashed.
09/04/2025 · Turkish Court of Cassation (Yargıtay), 10th Criminal Chamber · E. 2025/430, K. 2025/4124
🇹🇷Turkey → 🇪🇸Spain
Rejected (procedural grounds)Extradition
Citizenship revocation, international protection and evidentiary sufficiency in extradition proceedings
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Summary
The case concerned an extradition request submitted by Belgium against an Albanian national sought for prosecution for:- organized drug trafficking;- participation in a criminal organization.Belgian judicial authorities alleged that the requested person participated in a criminal organization involved in large-scale narcotics trafficking and that approximately 3.2 tons of narcotics were connected to the investigation. Belgian authorities issued:- an arrest warrant;- an Interpol Red Notice.The requested person had previously acquired Turkish citizenship exceptionally by Presidential decision in 2020, but his citizenship was later revoked in 2023 on national-security and public-order grounds.The requested person challenged the citizenship-revocation decision before the Council of State (Danıştay), and the administrative litigation remained pending during extradition proceedings.The requested person additionally filed an international-protection application before Turkish migration authorities.The Çankırı Heavy Penal Court found the extradition request admissible.The defence appealed, arguing inter alia that:- the Belgian extradition request lacked sufficiently concrete factual and evidentiary detail;- no adequate explanation existed regarding where, when, and how the alleged offences were committed;- specialty-principle guarantees had not been provided;- pending citizenship and asylum proceedings had not been resolved;- extradition would disproportionately affect the requested person’s family life and children residing in Türkiye.The Turkish Court of Cassation accepted these objections. The Court held that:- the outcome of the citizenship-revocation litigation and international-protection proceedings should have been awaited;- Belgian authorities had not sufficiently substantiated the allegations with concrete evidence such as: bank-transfer records; Sky ECC communication contents; and other investigative materials; - proportionality analysis under Article 11(4) of Law No. 6706 had not been adequately conducted;- Belgium had failed to provide an explicit specialty-principle undertaking under: Article 10(4) of Law No. 6706; Article 14 ECE.The extradition admissibility judgment was therefore quashed.
15/10/2024 · Turkish Court of Cassation (Yargıtay), 8th Criminal Chamber · E. 2024/18054, K. 2024/7673
🇹🇷Turkey → 🇧🇪Belgium
Rejected (procedural grounds)Extradition
Judicial Review of Cross-Border Transfer of Criminal Proceedings under Law No. 6706
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Summary
The case arose from the killing of Jamal Khashoggi inside the Saudi Arabian Consulate in Istanbul.Turkish prosecutors initiated criminal proceedings and indicted Saudi suspects. Because:- Saudi Arabia refused extradition of its nationals;- the suspects could not be physically secured for trial in Türkiye,Saudi authorities requested transfer of proceedings under Article 24 of Law No. 6706.The Turkish Ministry of Justice approved transfer.The Istanbul Heavy Penal Court suspended domestic proceedings and transferred the case to Saudi Arabia.The applicant challenged the transfer.The Constitutional Court examined whether this transfer violated the procedural obligation to conduct an effective investigation under the right to life.The judgment analyzed:- the Ministry of Justice’s role as Central Authority;- conditions for transfer of proceedings;- judicial reviewability of transfer decisions;- and compatibility of the transfer mechanism with constitutional guarantees. The judgment provides significant analysis regarding the relationship between:- criminal jurisdiction;- extradition impossibility;- prosecution transfer mechanisms;- international cooperation constraints.The Constitutional Court found a violation of the procedural aspect of the right to life, holding that the transfer of criminal proceedings to Saudi Arabia and the termination of domestic prosecution failed to satisfy the State’s obligation to conduct an effective investigation into the killing of Jamal K..
10/05/2023 · Constitutional Court of Türkiye (Anayasa Mahkemesi), First Section · Application No. 2022/53952
🇸🇦Saudi Arabia → 🇹🇷Turkey
Procedural orderExtradition
Country Contributor
Vahit Bıçak
Haraç Law & Consultancy
Prof. Dr. Vahit Bıçak is a Turkish attorney, expert of criminal law, criminal procedure law, and evidence law, and an internationally recognised practitioner specialising in extradition, INTERPOL Red Notices, cross-border criminal investigations, international judicial cooperation, white-collar crime, anti-money laundering (AML), sanctions-related proceedings, cybercrime, and transnational financial offences.
He is the Founder and Chairman of Bıçak Law Firm, a full-service law firm headquartered in Ankara with an additional office in Istanbul. The firm advises domestic and international clients in complex criminal, regulatory, compliance, and cross-border dispute matters involving multiple jurisdictions and international enforcement authorities.
Prof. Dr. Bıçak has more than three decades of professional experience in criminal law, criminal procedure law, international criminal cooperation, organised crime, financial crime, compliance, and regulatory investigations. His practice focuses particularly on extradition proceedings, INTERPOL Red Notice matters, European Arrest Warrant-related issues, international fraud investigations, money laundering and asset tracing, sanctions and export control investigations, cybercrime and digital evidence, corporate criminal liability, crossborder economic and business crimes, and international criminal defense and judicial cooperation.
He regularly advises individuals, executives, companies, and foreign legal teams in matters involving parallel criminal investigations, provisional arrests, mutual legal assistance, international arrest requests, and transnational financial enforcement proceedings.
Prof. Dr. Bıçak is widely recognised as a leading practitioner in Türkiye in the field of business criminal law and white-collar crime. He has advised on legislative and regulatory matters concerning fraud, corruption, bribery, anti-money laundering compliance, insider dealing, cybercrime, tax-related offences, financial misconduct, and organised criminal structures.
Prof. Dr. Bıçak graduated from the Faculty of Law of Ankara University and obtained his Ph.D. in Law from the University of Nottingham in the United Kingdom with a thesis concerning improperly obtained evidence and criminal procedure safeguards.
Throughout his academic and professional career, he has served as a visiting scholar and lecturer at several internationally recognised institutions, including the City University of New York and Fordham Law School in the United States, Lyon II University Faculty of Law in France, and the University of Maribor in Slovenia.
He has also held academic positions at leading Turkish universities, including Hacettepe University, Gazi University, Ankara Hacı Bayram Veli University, Bilkent University, Atılım University, and Başkent University. Since 1990, he has lectured extensively on criminal law, criminal procedure law, evidence law, organised crime, financial crime, international criminal cooperation, cybercrime, and business criminal law.
Prof. Dr. Bıçak has authored numerous academic and professional publications concerning criminal law, constitutional law, anti-money laundering regulation, cybercrime, evidence law, and comparative legal systems. His international publications include contributions to comparative legal publications and international legal guides relating to anti-money laundering, constitutional law, cybersecurity, and regulatory enforcement.
He currently serves as the Türkiye Ambassador of the International Sanctions & Export Control Society (ISECS) and as the White-Collar Crime Law Representative for Türkiye at Cross Border Advisory Solutions.
Under his leadership, Bıçak Law Firm maintains active international cooperation with foreign law firms, compliance professionals, academics, and legal practitioners across multiple jurisdictions in matters involving extradition, sanctions, INTERPOL, financial crime, cyber investigations, and international regulatory enforcement. Prof. Dr. Bıçak is fluent in Turkish and English.
Country Contributor
Ali Yildiz
Ali Yildiz Legal
He is a member of both the Ankara and Brussels Bar Associations and has been dedicatedly practicing law since 2004. His academic journey in law began with an LLB degree from the University of Ankara, followed by an LLM in International and European Law at Vrije Universiteit Brussel. He is fluent in Turkish, proficient in English, and has a basic understanding of Dutch.
He is a human rights lawyer and expert in individual applications to the European Court of Human Rights, UN Human Rights Mechanisms, the INTERPOL Commission for the Control of Files, and extradition and asylum procedures.
He completed expert witness training in the University of London. He is a member of the EIN’s Directory of Experts on Country of Origin. He provides expert witness reports on Turkish law in general, as well as on extradition and asylum cases. He has been involved as an expert witness in cases in the USA, the UK, Scotland and Belgium.
He is the author of several human rights monitoring reports on Turkey.
He is a regular legal writer, publishing on Verfassungsblog, Just Security, and with The International Association of Constitutional Law. He often provides comments to international media, including the Wall Street Journal, Al-Monitor, Balkan Insight, Turkish Minute, Ahval, Free Turkish Press, and The National.
He is a member of the Legal Experts Advisory Panel of Fair Trials, a member of Lawyers Against Transnational Repression, and the recipient of the ECBA Scott Crosby Human Rights Award 2025.
His dedication to the legal profession has been recognized through several international distinctions. In 2019, he was shortlisted as a finalist for the Lawyers for Lawyers Award, which honours lawyers who have shown exceptional courage and commitment to defending human rights and the rule of law. In 2021, he was invited to join the Legal Experts Advisory Panel of Fair Trials, a leading European NGO promoting fairness and justice in criminal proceedings. In 2025, he became one of the founding members of Lawyers Against Transnational Repression, an international network of legal professionals defending those targeted across borders. That same year, he was honoured with the Scott Crosby Human Rights Award by the European Criminal Bar Association (ECBA) in recognition of his work for human rights and the legal profession.
Country Contributor
Mehmet Fırat Can Haraç
Mehmet Fırat Can Haraç Law Firm
Mehmet Fırat Can Haraç is a Turkish criminal defence lawyer and a member of the Istanbul Bar Association. He has been practising law since 2020 and is based in Istanbul. He is currently pursuing an LL.M. in Public Law at Bahçeşehir University, with a particular academic interest in criminal law, criminal procedure and fundamental rights.

He is a native Turkish speaker, professionally proficient in English, and has a basic knowledge of Italian and French.

His practice focuses on criminal defence, extradition proceedings, international judicial cooperation in criminal matters, INTERPOL Red Notices and cross-border criminal cases.
His extradition experience includes representing a Russian national sought for extradition from Türkiye, as well as Turkish nationals whose extradition to Türkiye was sought from Italy. He has also worked on extradition cases involving Belgian and Greek nationals, providing legal opinions on issues arising under Turkish extradition law and procedure.
He has experience in INTERPOL-related matters and has prepared applications before the Commission for the Control of INTERPOL’s Files (CCF), particularly concerning Red Notices. His work in international criminal cooperation has a particular focus on the protection of fundamental rights and the human-rights implications of extradition, international arrest measures and other forms of cross-border criminal cooperation.
He has also prepared individual applications to the European Court of Human Rights concerning alleged violations of rights protected under the European Convention on Human Rights and closely follows the Court’s case law and proceedings.
Alongside his legal practice, Fırat is actively involved in international professional organisations. He serves as an Executive Officer of the European Young Bar Association (EYBA) and is involved in the Association’s work concerning the Council of Europe.
His principal professional interests include criminal defence, extradition law, INTERPOL mechanisms, international criminal cooperation, criminal procedure and the protection of fundamental rights in cross-border criminal proceedings.
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