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Criminal Defense Litigation in Turkey: Comprehensive Legal Guide

Facing criminal charges, a police interrogation, or an unexpected investigation in Turkey can be an overwhelming experience. Whether you are a local resident, an expatriate living in Istanbul, an international business professional, or a foreign visitor, navigating the Turkish criminal justice system requires immediate legal representation. A criminal charge—ranging from financial allegations and cyber crimes to personal disputes and narcotics offenses—carries severe risks, including pre-trial detention, asset freezing, travel bans, and potential prison sentences.

​VC Law & Consultancy provides comprehensive criminal defense litigation services across Istanbul and throughout Turkey. Our primary commitment is protecting your legal rights from the initial moment of police questioning through the final appeal before the Court of Cassation (Yargıtay). We ensure that every client receives a fair defense grounded in Turkish statutory law, procedural safeguards, and international legal standards.

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Scope of Our Criminal Defense Practice

Turkish criminal procedure moves rapidly once an investigation is initiated. Early intervention by an experienced defense lawyer is critical to prevent procedural errors, challenge unlawful search or seizure measures, and safeguard client autonomy. VC Law & Consultancy handles all stages of criminal proceedings under Turkish law, including representation during law enforcement questioning, prosecutor interviews, and bail hearings before the Magistrate Judgeship of Peace (Sulh Ceza Hakimliği); objections to judicial control decisions, travel bans, arrest orders, bank account freezes, and asset seizure measures; trial court representation before Heavy Penal Courts (Ağır Ceza Mahkemesi) and First Instance Criminal Courts (Asliye Ceza Mahkemesi); appellate litigation through regional appeal petitions (istinaf) and final cassation appeals before the Court of Cassation (Yargıtay); and assistance to foreign nationals facing Interpol Red Notices, provisional arrest warrants, or deportation proceedings tied to foreign criminal allegations.

Core Practice Areas and Criminal Defense Categories

Defense in Narcotics and Controlled Substance Offenses

​Turkish narcotics laws carry exceptionally strict statutory penalties and sharply distinguish between personal drug possession and illegal drug trafficking or supply. Under Article 188 of the Turkish Penal Code, the unauthorized manufacture, import, or export of narcotic or psychotropic substances is punishable by imprisonment of twenty to thirty years. Domestic acts of selling, offering for sale, transporting, storing, or commercially possessing such substances carry a sentence of not less than ten years (rising to fifteen years when the recipient is a minor), with further increases for certain substances such as heroin, cocaine, or synthetic cannabinoids, or when the offense is committed within an organized group. Personal purchase, receipt, or possession for personal use is governed by TCK Article 191 and carries a potential sentence of two to five years. First-time personal use charges frequently qualify for a deferral of the opening of a public prosecution for five years, accompanied by judicial probation and, where appropriate, treatment obligations. Defense practice focuses on analyzing search legality, questioning chain-of-custody protocols for physical evidence, and ensuring proper distinction between personal use and commercial supply allegations.

Fraud, Cyber Fraud, and Financial Crimes

Financial and white-collar crime investigations have grown increasingly complex with the rise of digital banking and international commerce. Fraud charges under Turkish law are divided into simple fraud (TCK Article 157) and qualified fraud (TCK Article 158). Qualified fraud includes offenses committed through information systems, bank accounts, insurance schemes, or by exploiting positions of trust. Unauthorized use of credit cards (TCK Article 245) and illegal access to computer systems (TCK Article 243) carry substantial prison terms. Defense work in these cases involves thorough review of financial and digital records, examination of audit logs, and representation of both individual and corporate clients.

Official and Private Document Forgery

Forgery allegations often arise in commercial disputes, property transactions, immigration procedures, or corporate governance. The Turkish Penal Code penalizes forgery in official documents under TCK Article 204 and forgery in private documents under TCK Article 207. Official document forgery carries statutory imprisonment of two to five years for private individuals, with higher penalties for public officials. Legal defense requires forensic handwriting analysis, document examination, and careful assessment of the presence or absence of criminal intent to mislead.

Assault, Intentional Injury, and Bodily Harm

Personal safety disputes, physical altercations, and domestic incidents fall under intentional injury (TCK Article 86) and aggravated injury (TCK Article 87). The law considers aggravating factors such as the use of weapons, permanent physical injury, bone fractures, or offenses committed against family members or public officials. Defense strategy centers on examination of medical forensic reports (Adli Tıp Raporu), evaluation of self-defense grounds under TCK Article 25, and clarification of the precise timeline of events.

Sexual Offenses and Abuse Allegations

Allegations concerning sexual assault (TCK Article 102), sexual abuse of minors (TCK Article 103), and sexual harassment (TCK Article 105) carry extreme legal and personal ramifications. These cases demand objective legal analysis, strict adherence to evidence evaluation rules under the Code of Criminal Procedure, and meticulous examination of witness statements, digital communications, and expert reports. Rigorous legal protection is provided while maintaining the highest level of confidentiality.

Theft, Extortion, and Property Crimes

Property offenses range from simple theft (TCK Article 141) and qualified theft (TCK Article 142) to extortion (TCK Article 148). Qualified theft involves acts committed in residential premises, at night, or using keys or electronic access. Extortion involves forcing an individual to surrender assets under threat of force or violence. Defense frequently centers on proving ownership rights, verifying value thresholds, and assessing the lawfulness of police identification and search procedures.

Defamation, Insult, and Online Cyber Harassment

Under TCK Article 125, insulting an individual’s honor, dignity, or prestige constitutes a criminal offense punishable by judicial fine or imprisonment. When defamation is committed via publicly accessible media or social networks, or is directed against public officials, statutory penalties increase. Defense strategies evaluate freedom of expression boundaries, the context of the statement, and the availability of the right to prove the truth of the statement (ispat hakkı).

Illegal Betting, Gambling, and MASAK Account Freezes

Investigation into unauthorized online betting and illegal gambling operations is regulated under Law No. 7258. Organizing or providing facilities for unauthorized sports betting, mediating money transfers for illegal betting, and promoting or advertising illegal betting platforms are criminal offenses carrying prison terms generally ranging from one to five years (with higher ranges in certain access-facilitation cases). Participating as a player is classified as an administrative misdemeanor subject to substantial financial fines. In practice, the Financial Crimes Investigation Board (MASAK) frequently issues temporary freezing orders on bank accounts suspected of involvement in illegal betting or related money transfers. Legal action is often required to challenge freezes on legitimate commercial and personal accounts and to represent individuals drawn into broader investigations.

Rights of Foreign Nationals in Turkish Criminal Proceedings

Foreign citizens involved in Turkish criminal cases have specific procedural rights designed to ensure fairness. Under CMK Article 202, any suspect or defendant who does not speak Turkish has the absolute right to a qualified interpreter during police questioning, prosecutorial interviews, and court hearings. Foreign detainees have the right to request that their home nation’s consulate or embassy be notified of their arrest or detention. A criminal charge can trigger administrative detention in a Removal Center (Geri Gönderme Merkezi) and a subsequent deportation order by the Presidency of Migration Management. Managing criminal defense simultaneously with administrative immigration defense is essential to prevent premature deportation while criminal proceedings remain pending. Release under judicial control or financial bail is available regardless of nationality, although foreign nationals may be viewed as a higher flight risk; concrete evidence of local residency, family ties, or business operations in Turkey is frequently decisive in securing release.

Questions & Answers

What should I do immediately if I am detained by the police in Istanbul?

You have the right to remain silent regarding the substance of the allegation until your legal counsel is present. Explicitly request to contact a criminal defense attorney before giving any official statement or signing any police protocol (ifade tutanağı).

What is the difference between a judicial control order and arrest?

Arrest involves physical detention in a prison facility prior to trial. Judicial control (adli kontrol) is an alternative measures framework that allows a suspect to remain free during the proceedings subject to conditions such as signature duties at a local police station, a bail deposit, or a travel ban prohibiting departure from Turkey.

Can a foreign national be released on bail in Turkey?

Yes. Turkish criminal law permits release under judicial control or financial bail regardless of nationality. Because foreign nationals may be viewed as a flight risk, defense counsel must present concrete evidence of local residency, family ties, or business operations in Turkey to support release without pre-trial detention.

How long does a criminal trial usually take in Turkish courts?

Investigation phases can last from several weeks to several months depending on evidence gathering and forensic reports. Once an indictment (iddianame) is accepted by the court, trial proceedings before First Instance or Heavy Penal Courts typically require six to eighteen months, with additional time required for appellate reviews.

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Immediate Criminal Defense Assistance

If you or a family member is facing an investigation, police interrogation, court summons, or arrest in Turkey, securing timely and skilled legal counsel is the most critical decision you can make. VC Law & Consultancy offers direct legal defense and strategic representation across all Turkish criminal jurisdictions. Contact our Istanbul office immediately to speak with a criminal defense lawyer.

Turkish Criminal Procedure Code (CMK) and Police / Prosecutor’s Office

Facing a criminal investigation in Turkey, whether as a suspect, a person called to give a statement, or a victim seeking protection of your rights, can require immediate and careful legal attention. The first stages before the Police, Gendarmerie, and Chief Public Prosecutor’s Office (Cumhuriyet Başsavcılığı) are part of the investigation phase (soruşturma evresi) and can have an important effect on the subsequent course of the criminal proceedings.

At VC Law & Consultancy, we provide criminal defense assistance during criminal investigations in Istanbul and throughout Turkey. Our work is based on the Turkish Criminal Procedure Code (Ceza Muhakemesi Kanunu, Law No. 5271, commonly referred to as CMK) and includes legal assistance during police and gendarmerie procedures, proceedings before the Public Prosecutor’s Office, apprehension and custody, judicial control, pre-trial detention proceedings, evidence-related procedures, and other measures arising during a criminal investigation.

VC Law & Consultancy criminal defense lawyer consulting a client on CMK, police, and prosecutor investigation procedures in an Istanbul office overlooking Galata Tower.

Scope of Criminal Procedure Before the Police and Prosecutor’s Office

Under Turkish criminal procedure, the investigation phase begins when the competent authorities become aware of an alleged offense and continues until the investigation is concluded. Depending on the evidence and applicable legal conditions, the Public Prosecutor may prepare an indictment (iddianame) for submission to the competent court or issue a Kovuşturmaya Yer Olmadığına Dair Karar (KYOK), commonly referred to as a Takipsizlik Kararı.
 

Legal assistance during this stage may include:

  • Police and Gendarmerie Statements (İfade Alma): Legal assistance before police stations, police departments, and gendarmerie units when a person is required to give a statement.
     

  • Proceedings Before the Public Prosecutor: Legal assistance during statements before the Public Prosecutor and preparation of submissions concerning the investigation.
     

  • Apprehension and Custody (Yakalama ve Gözaltı): Assistance following apprehension and during custody, including assessment of applicable procedural safeguards and available legal remedies.
     

  • Judicial Control and Pre-Trial Detention: Defense before the Criminal Judgeship of Peace (Sulh Ceza Hâkimliği) when judicial control or pre-trial detention is considered or requested.
     

  • KYOK / Decision of Non-Prosecution: Preparation of legal submissions and supporting evidence concerning the statutory conditions for a KYOK.
     

  • Search, Seizure and Digital Evidence: Legal assistance concerning searches, seizure measures, and the examination or copying of computer-related evidence under the applicable provisions of Turkish criminal procedure.
     

  • Criminal Complaints: Preparation of criminal complaints, supporting evidence, and submissions on behalf of victims or complainants.
     

  • Foreign Nationals: Assistance for foreign nationals involved in criminal investigations in Turkey, including language and procedural issues and potential consequences for residence or immigration status where relevant.

Key Turkish Laws and Procedural Rights

The principal legislation governing criminal procedure includes the Turkish Criminal Procedure Code (Law No. 5271), the Turkish Penal Code (Law No. 5237), the Constitution of the Republic of Turkey, and other applicable legislation and regulations concerning criminal investigations and protective measures.

Right to Legal Counsel

Under CMK Article 149, a suspect or accused person may benefit from the assistance of one or more defense lawyers (müdafi) at every stage of the investigation and prosecution. The defense lawyer has the right to meet with the suspect or accused, be present during statement-taking or interrogation, and provide legal assistance. CMK Article 150 also establishes circumstances in which the appointment of a defense lawyer is mandatory. This includes certain situations involving minors, persons who are unable to defend themselves due to a disability, persons who are deaf and mute as specified by the provision, and investigations and prosecutions concerning offenses whose minimum prescribed prison sentence exceeds five years.

Right to Remain Silent

Under CMK Article 147, a suspect must be informed of the accusation and relevant procedural rights when a statement is taken. The suspect has the right to remain silent concerning the accusation. This does not eliminate the legal obligation to provide accurate identifying information where required.

The decision whether and how to exercise the right to remain silent should be assessed in light of the circumstances of the investigation and the available evidence.

Apprehension and Custody

​CMK Article 91 regulates custody (gözaltı). As a general rule, the custody period may not exceed 24 hours from apprehension, excluding the mandatory time required to bring the person before the nearest judge or court. This transportation period may not exceed 12 hours. For offenses committed collectively, the Public Prosecutor may order written extensions of the custody period where the statutory conditions are present. Each extension may not exceed one day, and the total extension may not exceed three days. The law also provides a specific judicial remedy against an apprehension, custody, or extension order issued by the Public Prosecutor. The person concerned, their defense lawyer, legal representative, spouse, or certain close relatives may apply to the Criminal Judgeship of Peace (Sulh Ceza Hâkimi) for immediate release. The judge examines the application without a hearing and must conclude the review as soon as possible and no later than 24 hours. If the person is not released, they must be brought before the Criminal Judgeship of Peace for questioning at the end of the applicable custody period, with their defense lawyer present.

Search, Seizure and Digital Evidence

Turkish criminal procedure contains specific rules governing searches and seizure of evidence. CMK Article 134 specifically regulates searches, copying, and seizure involving computers, computer programs, and computer records. Where the statutory conditions are met, including the existence of strong suspicion based on concrete evidence and the absence of another way to obtain the evidence, the relevant measure may be ordered by a judge. In cases where delay would be prejudicial, the Public Prosecutor may issue the decision. A decision issued by the Public Prosecutor must be submitted for judicial approval within 24 hours, and the judge must decide within a further 24 hours. Accordingly, access to, copying of, examination of, or seizure of computer-related evidence is subject to specific procedural requirements. The legality of the measure depends on the circumstances of the investigation and the statutory conditions applicable to the particular procedure.

Decisions of Non-Prosecution: KYOK / Takipsizlik Kararı

Under CMK Article 172, the Public Prosecutor issues a Kovuşturmaya Yer Olmadığına Dair Karar (KYOK) where, at the conclusion of the investigation, the legal conditions for bringing a public prosecution have not been established. This may occur, among other statutory circumstances, where sufficient evidence to establish the required level of suspicion has not been obtained or where prosecution is not legally possible. A KYOK concludes the investigation without an indictment being filed on that basis. It is not a criminal conviction and is not the same as a court judgment of acquittal. A KYOK may be subject to legal challenge. Under CMK Article 173, the person harmed by the alleged offense may object to the decision within two weeks from notification, following the procedure and jurisdiction established by law. CMK Article 172 also regulates the possibility of a subsequent prosecution for the same act where new evidence is obtained and the statutory judicial requirements are satisfied.

Common Situations During Police and Prosecutor Investigations

Receiving a Police or Prosecutor’s Summons

​A person may be requested to appear before the Police, Gendarmerie, or Public Prosecutor to provide information or a statement. The person's procedural status may differ depending on the circumstances. They may be a suspect (şüpheli), victim (mağdur), complainant (müşteki), or witness (tanık). Before appearing, obtaining legal assistance can help clarify the nature of the proceeding, the person's procedural position, the available rights, and the documents or evidence relevant to the investigation.

Apprehension or Custody

When a person is apprehended or placed in custody, immediate access to legal assistance can be important for protecting procedural rights and addressing the legality and necessity of the measures being applied. A defense lawyer can meet with the person, assist during statement-taking, review relevant procedural documents where legally accessible, and take appropriate legal steps concerning custody, judicial control, pre-trial detention, or other protective measures.

Seeking a KYOK

Where the evidence does not provide the legal basis required for prosecution, defense counsel may submit legal arguments, documents, and other relevant evidence to the Public Prosecutor and request a Kovuşturmaya Yer Olmadığına Dair Karar. A KYOK is ultimately a prosecutorial decision governed by the statutory requirements of CMK Article 172. Legal counsel cannot guarantee that such a decision will be issued, but can present the relevant legal and evidentiary grounds for consideration.

Judicial Control or Pre-Trial Detention

Where restrictive measures require judicial consideration, a suspect may be brought before the Criminal Judgeship of Peace (Sulh Ceza Hâkimliği). Judicial control (adli kontrol) may involve measures such as a travel restriction or periodic reporting obligations, depending on the applicable legal conditions. Pre-trial detention (tutuklama) is governed principally by CMK Article 100 and requires the statutory conditions for detention, including strong suspicion of the offense supported by concrete evidence and a legally recognized ground for detention. The necessity and proportionality of the measure are also relevant to the assessment.

Criminal Procedure Issues for Foreign Nationals in Turkey

Foreign nationals may face additional practical and procedural considerations during a criminal investigation. These may include communication difficulties, the need for an interpreter, consular issues, and potential consequences for residence or immigration status depending on the circumstances. Under CMK Article 202, the applicable interpreter provisions extend to persons involved in criminal proceedings where the statutory conditions are met. During the investigation phase, the interpreter is appointed by the judge or Public Prosecutor in accordance with the Code. Foreign nationals should therefore not assume that ordinary communication in Turkish is necessarily sufficient for an important criminal-procedure act. Where interpretation is legally required, the relevant procedural safeguards should be observed.

Questions & Answers: Police, Prosecutor & CMK Procedures in Turkey

What is a KYOK or Takipsizlik Kararı?
 

A Kovuşturmaya Yer Olmadığına Dair Karar (KYOK), commonly called a Takipsizlik Kararı, is a decision issued by the Public Prosecutor when the statutory conditions for bringing a public prosecution are not satisfied, including where sufficient evidence to establish the required level of suspicion has not been obtained or prosecution is not legally possible. It concludes the investigation without an indictment on that basis.
 

Does a KYOK mean that I have been found innocent by a court?
 

No. A KYOK is a decision at the investigation stage, not a court judgment of acquittal. It means that the statutory conditions for bringing a public prosecution have not been established at the conclusion of the investigation.
 

Can a KYOK be challenged?
 

Yes. Under CMK Article 173, the person harmed by the alleged offense may object to a KYOK within two weeks from notification, following the procedure and jurisdiction specified by law.
 

What should I do if I am asked to give a statement to the police in Turkey?

You should first establish why you have been called and your procedural status. If you are being investigated as a suspect, you have the right to legal assistance. Depending on the circumstances, it may be appropriate to consult a defense lawyer before providing a substantive statement.
 

What is the role of a lawyer during a police statement?
 

A defense lawyer can provide legal assistance before and during statement-taking, help the suspect understand the allegations and procedural rights, identify relevant legal issues, and ensure that the person's defense is properly reflected in the official record. The lawyer's role can be particularly important where custody, search, seizure, judicial control, or other restrictive measures are involved.
 

Can a foreign national have an interpreter during a criminal investigation?
 

Where the conditions of CMK Article 202 are met, the applicable interpreter provisions can apply during the investigation phase as well as the prosecution phase. During the investigation, the interpreter is appointed by the judge or Public Prosecutor in accordance with the applicable procedure.
 

What can happen after a police statement?
 

The investigation may continue with additional evidence gathering and other procedural measures. Depending on the circumstances and the evidence, the Public Prosecutor may ultimately issue a KYOK or, where the statutory conditions for prosecution are met, prepare an indictment for submission to the competent court. Other measures, including judicial control or pre-trial detention, may also arise where their legal requirements are satisfied.
 

VC Law & Consultancy criminal defense illustration showing Turkish police, Public Prosecutor's Office, and Code of Criminal Procedure CMK legal services in Istanbul.

Legal Assistance During Criminal Investigations in Turkey

Criminal investigations can develop quickly, particularly where police custody, searches, digital evidence, or judicial control measures are involved. Early legal assessment can help establish the person's procedural position, identify applicable rights and obligations, and determine what legal steps may be appropriate. VC Law & Consultancy provides criminal defense assistance before Police, Gendarmerie units, Public Prosecutor’s Offices, and relevant judicial authorities in Turkey. If you or a family member is facing a criminal investigation, has been summoned to provide a statement, has been apprehended or placed in custody, or has received a KYOK or other criminal-procedure document, contact us to discuss the circumstances and the appropriate legal procedure.

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