Extradition and International Legal Cooperation in Turkey: Extradition Defense, INTERPOL Red Notices, and Mutual Legal Assistance Guide

Extradition and international judicial cooperation in criminal matters in Türkiye are primarily governed by Law No. 6706 on International Judicial Cooperation in Criminal Matters, Article 38 of the Constitution of the Republic of Türkiye, and the European Convention on Extradition. Under Turkish law, Turkish citizens cannot be extradited (except for obligations arising from the International Criminal Court), and extradition requests are strictly barred if the offense is political or military in nature, lacks dual criminality, carries the death penalty or torture risk, or stems from discriminatory prosecution.

As cross-border travel, international finance, and global commerce expand, foreign nationals residing in or transiting through Türkiye increasingly face complex international criminal law challenges—ranging from foreign extradition requests and INTERPOL Red Notice arrests at Turkish airports to international asset freeze orders and Mutual Legal Assistance (MLA) evidence requests. Navigating these proceedings requires urgent coordination between criminal defense litigation, international human rights conventions, and Turkish immigration law.

At Cosmos Legal Law Firm, we represent foreign nationals, international executives, and investors in contesting extradition requests before Turkish High Criminal Courts, challenging politically motivated or abusive INTERPOL Red Notices before the Commission for the Control of INTERPOL’s Files (CCF), lifting immigration restriction codes, and handling cross-border Mutual Legal Assistance procedures in Türkiye.

1. Legal Framework Governing Extradition in Türkiye

Extradition requests directed to Türkiye are evaluated under Law No. 6706 on International Judicial Cooperation in Criminal Matters, bilateral extradition treaties, and multilateral conventions coordinated by the Ministry of Justice Directorate General for Foreign Relations and European Union Affairs:

• Dual Criminality Requirement (Article 10 of Law No. 6706): Extradition is only permissible if the alleged act constitutes a criminal offense under both the requesting country’s laws and Turkish criminal law, carrying a minimum prison sentence of at least 1 year (or at least 4 months remaining for finalized convictions).
• Absolute Prohibition on Extraditing Turkish Citizens (Article 11/1-a): Pursuant to Article 38 of the Turkish Constitution and Law No. 6706, a Turkish citizen cannot be extradited to a foreign country on account of an offense. If a foreign state requests the extradition of a Turkish citizen, Türkiye may instead initiate domestic prosecution in Türkiye upon request.
• Mandatory Grounds for Refusal (Article 11 of Law No. 6706): Turkish courts and authorities must strictly reject extradition requests if:
  1. The offense is a political offense, an offense connected with a political offense, or a purely military offense.
  2. There are substantial grounds to believe the person will be subjected to torture, inhuman or degrading treatment, the death penalty, or persecution based on race, religion, nationality, political opinion, or social group.
  3. The offense falls under Turkish courts’ jurisdiction or has already resulted in a finalized acquittal/conviction (Ne Bis in Idem / Double Jeopardy).
  4. The prosecution or sentence has become time-barred (statute of limitations) under either Turkish law or the requesting state’s law.

2. How Extradition Proceedings Work in Türkiye (Step-by-Step)

When a foreign state transmits an extradition request—or when an individual is detained at a Turkish border gate due to an INTERPOL Red Notice or Diffusion—a strict two-tier judicial and executive process begins:

1. Provisional Arrest and Judicial Control (Articles 14–16 of Law No. 6706): Upon receiving an urgent extradition request or INTERPOL alert, the Chief Public Prosecutor brings the wanted person before the Criminal Judgeship of Peace, which may order provisional detention (up to 40 days pending receipt of formal extradition documents) or release the person under judicial control measures (adli kontrol) such as an international travel ban and regular police signature reporting.
2. High Criminal Court Extradition Hearing (Article 18): Once formal extradition documents arrive via the Ministry of Justice, the High Criminal Court (Ağır Ceza Mahkemesi) holds a formal judicial hearing. Defense counsel presents legal objections, human rights evidence, dual criminality challenges, and expert reports to prove that the legal conditions for extradition are not met.
3. Appeal to the Court of Cassation (Yargıtay): The High Criminal Court’s decision on whether extradition is legally permissible can be appealed directly to the Court of Cassation (Yargıtay).
4. Final Executive Approval (Article 19): Even if the High Criminal Court and Court of Cassation rule that extradition is legally permissible, the final decision to execute extradition rests with the President of the Republic of Türkiye, following the proposal of the Minister of Justice and the opinions of the Ministries of Foreign Affairs and Interior. If the court rules that extradition is not legally permissible, the extradition request is definitively rejected.

3. INTERPOL Red Notices and Preventive Defense Strategies

Many international disputes involve abusive or commercially motivated INTERPOL Red Notices issued by authoritarian regimes or business rivals over civil debt or political disagreements:

• Challenging Red Notices Before INTERPOL (CCF): Under INTERPOL’s Constitution (Article 2 and Article 3), INTERPOL is strictly prohibited from intervening in matters of a political, military, religious, or racial character, as well as private commercial/contractual disputes. Legal counsel can file a formal deletion or preventive request with the Commission for the Control of INTERPOL’s Files (CCF) in Lyon, France, to remove unlawful Red Notices globally.
• Protecting Immigration Status in Türkiye: An INTERPOL alert frequently triggers a simultaneous immigration restriction code (such as G-87 or N-82) and a deportation order by the Presidency of Migration Management. Crucially, Turkish authorities cannot circumvent formal extradition safeguards by deporting an individual to a country where they face torture or persecution (Principle of Non-Refoulement / Geri Gönderme Yasağı under Article 4 of Law No. 6458). Filing an annulment lawsuit before the Administrative Court within 7 days automatically halts deportation.

4. International Mutual Legal Assistance (MLA) and Cross-Border Asset Seizures

Beyond extradition, Law No. 6706 governs Mutual Legal Assistance (Adli Yardımlaşma) between Türkiye and foreign jurisdictions:

• Evidence Gathering, Witness Testimony, and Service of Documents: Foreign courts and prosecutors frequently request Turkish judicial authorities to take witness statements, obtain banking/corporate records, or serve judicial summonses in Türkiye via diplomatic channels or the European Convention on Mutual Assistance in Criminal Matters.
• Cross-Border Confiscation and Bank Account Freezes: Foreign authorities may request Turkish prosecutors and Criminal Judgeships of Peace to freeze bank accounts, real estate, or corporate shares in Türkiye suspected of being proceeds of crime. Targeted individuals and companies have the full right to file objections before Turkish Criminal Judgeships of Peace to prove lawful source of funds and lift disproportionate cross-border seizures.

Frequently Asked Questions (FAQ)

• If I am arrested at Istanbul Airport due to an INTERPOL Red Notice, how quickly will I be extradited?
  You are never extradited immediately at the airport. First, you are brought before a prosecutor and judge regarding provisional arrest/judicial control; then, the requesting state must submit a formal diplomatic extradition file within 40 days, followed by full High Criminal Court hearings, a Court of Cassation appeal, and final executive review—a process that typically takes 6 to 18 months, during which your defense team can secure your release on bail/judicial control and defeat the extradition request.
• Can a foreign national facing extradition apply for International Protection (Asylum) in Türkiye?
  Yes. If an individual faces persecution, political imprisonment, or torture in the requesting country, applying for International Protection before the Presidency of Migration Management triggers strict Non-Refoulement protections, suspending both deportation and extradition while protection claims are adjudicated.
• Can Türkiye extradite a foreigner for unpaid civil debts or bounced checks?
  No. Under Article 38 of the Turkish Constitution and Law No. 6706, no person may be deprived of liberty or extradited solely due to inability to fulfill a contractual or civil debt obligation. Requests disguised as fraud that actually stem from ordinary commercial disputes are routinely rejected by Turkish High Criminal Courts.

Conclusion and Professional Legal Support

Extradition, INTERPOL Red Notice defense, and international legal cooperation proceedings sit at the intersection of constitutional human rights, criminal litigation, and immigration protection. Immediate legal representation at the moment of detention or notification is vital to securing release from provisional custody, defeating unlawful extradition requests, preventing disguised deportation, and deleting abusive INTERPOL alerts.

For emergency representation in extradition hearings before Turkish High Criminal Courts, provisional arrest and judicial control release applications, INTERPOL CCF deletion requests, non-refoulement deportation defense, and cross-border Mutual Legal Assistance matters in Türkiye, contact Cosmos Legal Law Firm and follow our @cosmoslegal.global Instagram account for regular legal updates.