The burden of proof in Turkish criminal proceedings is one of the core principles that determines whether a criminal case is decided under the rule of law or merely under suspicion. In Türkiye, the criminal process does not begin from the assumption that an accused person must prove innocence. It begins from the opposite position: innocence is the legal starting point, and guilt must be established according to law. This principle is not contained in a single isolated provision. It emerges from the combined operation of the Constitution, the Code of Criminal Procedure, the public prosecutor’s charging function, the lawful-evidence rule, the acquittal grounds in the Code, and the Constitutional Court’s case-law on the presumption of innocence. (Anayasa Mahkemesi)
Any serious analysis of the burden of proof in Turkish criminal proceedings must begin with the Constitution. Article 38 of the Constitution of the Republic of Türkiye states that no one shall be considered guilty until proven guilty in a court of law. The same article also protects the privilege against self-incrimination and prohibits the use of findings obtained through illegal methods as evidence. Article 36 separately guarantees the right to a fair trial through legitimate means and procedures. When these guarantees are read together, the result is clear: the State must prove the accusation lawfully, and the accused cannot be forced to secure a conviction against himself or herself. (Anayasa Mahkemesi)
The Turkish Constitutional Court has made this point in especially direct language. In its case-law, the Court has stated that because the individual’s innocence is “essential,” the burden of proof rests with the prosecution and no one can be placed under an obligation to prove his or her innocence. The Court has also explained that no judicial or public authority may treat a person as guilty until guilt has been established by a court decision. That formulation matters because it does more than restate a moral principle. It identifies who must prove the criminal charge and who may not be forced to disprove it. (Kararlar Bilgi Bankası)
This allocation of the burden of proof is one of the clearest consequences of the presumption of innocence in Turkish law. The Constitutional Court has repeatedly treated the presumption of innocence as an element inherent in the right to a fair trial and has linked it directly to the rule that the prosecution carries the burden of proving guilt. In other words, the burden of proof in Turkish criminal proceedings is not a free-floating technical doctrine. It is a constitutional consequence of innocence being the legal default position. (Kararlar Bilgi Bankası)
At the statutory level, the same structure appears in the way the Code of Criminal Procedure organizes the criminal process. Article 170 provides that the public prosecutor prepares an indictment only if the evidence collected at the end of the investigation creates “sufficient suspicion” that the offense was committed. The same provision also requires the indictment to explain the alleged events in relation to the available evidence and to include not only matters against the suspect but also matters in the suspect’s favor. That requirement is important because it shows that even before trial, Turkish criminal procedure expects the accusation to be supported by evidence gathered and evaluated by the prosecution, not by proof demanded from the suspect. (MGM Adalet)
The distinction between investigation-stage suspicion and trial-stage proof is vital. Turkish law allows a case to move forward on the basis of sufficient suspicion, but sufficient suspicion is not the same thing as established guilt. A public case may be opened when the evidentiary threshold for indictment is met, yet the burden of proof still remains with the prosecution at trial. The fact that an indictment has been issued does not reverse the constitutional presumption of innocence, nor does it create a legal duty on the defendant to prove that the accusation is false. (MGM Adalet)
This is where Article 217 of the Code becomes crucial. The official text of the Code provides that the charged offense may be proven by any kind of evidence obtained lawfully. The same provision also reflects the principle that the court bases its decision on evidence presented and discussed at the hearing. Article 217 therefore connects the burden of proof to the lawful-evidence rule: the prosecution must carry the burden, and it must carry that burden with evidence that is lawfully obtained and properly introduced into the trial process. Suspicion, file accumulation, or informal narrative cannot substitute for lawful proof. (MGM Adalet)
The acquittal framework confirms the same logic. Article 223 of the Code lists acquittal grounds, including that the alleged act is not defined as a crime, that it has not been proven that the accused committed the offense, or that the required intent or negligence is absent. This is highly significant for the burden of proof in Turkish criminal proceedings because it shows what happens when the prosecution fails. The law does not require the accused to prove innocence in some affirmative way. It requires acquittal where the prosecution cannot establish guilt under the categories recognized by the Code. (MGM Adalet)
That point can be put even more clearly. In Turkish criminal law, acquittal is not merely a moral declaration that the court “feels unconvinced.” It is a legal consequence of the prosecution’s failure to satisfy the burden placed on it by the Constitution and the Code. If the court cannot say that the defendant committed the offense, or cannot establish the required mental element, then the result is not procedural limbo. It is acquittal. This is one of the clearest doctrinal expressions of the burden-of-proof principle in the Turkish system. (MGM Adalet)
The burden of proof also explains why the defendant’s silence cannot legally be treated as proof of guilt. Article 38 of the Constitution protects the privilege against self-incrimination, and the Constitutional Court has linked that protection to the broader fair-trial framework. If the prosecution carries the burden, then the accused must remain free not to help discharge it. A defendant may choose to speak, remain silent, deny the accusation, or present defense evidence, but none of those choices changes the underlying legal rule that guilt must be established by the prosecuting side. (Anayasa Mahkemesi)
At the same time, Turkish criminal procedure does not eliminate the court’s role in clarifying the facts. Turkish judges are not passive referees in the strict adversarial sense, and the criminal process still aims at discovering the material truth. But that judicial duty to evaluate and, where appropriate, clarify the evidence does not shift the burden of proof to the defendant. This distinction is essential. The court’s search for truth and the prosecution’s burden of proof are not contradictory concepts. The court may actively assess the file, yet the constitutional baseline remains that the defendant need not prove innocence and the prosecution must prove guilt. (Kararlar Bilgi Bankası)
This distinction also helps explain a common confusion in practice. Some observers assume that because criminal courts in Türkiye may actively question evidence, request clarifications, or hear witnesses and experts, the burden of proof somehow becomes “shared.” That is not correct. Procedural activity by the court does not create an equal evidentiary duty on the defendant. The Constitutional Court’s formulation remains decisive: innocence is essential, the burden rests with the prosecution, and no one may be made responsible for proving non-guilt. (Kararlar Bilgi Bankası)
Another crucial aspect of the burden of proof in Turkish criminal proceedings is the standard that applies when doubt remains. Turkish legislation does not set out the conviction threshold in one single standalone sentence using the common-law phrase “beyond reasonable doubt.” But the combined effect of the presumption of innocence, the prosecution’s burden, the lawful-evidence requirement in Article 217, and the acquittal grounds in Article 223 leads to the same functional result: unresolved doubt cannot lawfully be converted into conviction. The European Court of Human Rights’ current materials on Article 6 also identify the burden of proof as lying on the prosecution and connect inadequate reasoning to the in dubio pro reo principle, under which doubt should benefit the accused. (MGM Adalet)
This is especially important because not every criminal case fails in dramatic fashion. Many cases turn on ambiguity: partial witness contradiction, uncertain authorship, incomplete causation, disputed technical interpretation, or evidentiary gaps in intention or knowledge. The burden of proof rule means those gaps do not have to be filled by defendant explanation. If the lawful evidence still leaves a real unresolved doubt about criminal responsibility, the legal direction of that doubt is toward the accused, not against the accused. That is the practical meaning of the presumption of innocence at the proof stage. (ECHR-KS)
The burden of proof is also inseparable from the lawful-evidence rule. Article 38 of the Constitution forbids the use of findings obtained by illegal methods. Article 217 provides that the charged offense may be proven only by lawfully obtained evidence. This means the prosecution is not free to discharge its burden with any material that happens to look incriminating. The burden must be satisfied by lawful proof. If the evidence was obtained unlawfully, the problem is not just one of reliability. It is a structural failure in how the prosecution attempts to meet its burden. (Anayasa Mahkemesi)
The reasoning duty of the court reinforces the same principle. The official text reflected in Article 230 requires the reasoning of a conviction to address the arguments raised in accusation and defense, and Turkish criminal procedure requires the judgment to explain which evidence was accepted and which was rejected. This matters for the burden of proof because a court that convicts must show how the prosecution satisfied its burden through lawful and persuasive evidence. A conviction that simply announces a conclusion without grappling with the defense case, the evidence, and any remaining uncertainty is difficult to reconcile with the constitutional structure of innocence and fair trial. (Mevzuat)
The European Court’s key theme on the presumption of innocence adds another useful dimension. It explains that Article 6 § 2 not only prohibits premature declarations of guilt but also requires the burden of proof to remain on the prosecution. It further notes that inadequate judicial reasoning may conflict with the principle that doubt should benefit the accused. This is relevant to Turkish law because it shows that the burden-of-proof doctrine is not limited to who brings evidence. It also affects how courts speak, how they reason, and whether they convert suspicion into guilt without a proper explanation. (ECHR-KS)
Pre-trial detention must also be understood carefully in this context. Turkish law permits detention in limited circumstances, but detention is based on suspicion and procedural risk, not on a final establishment of guilt. The Constitutional Court has expressly stated that the presumption of innocence covers persons who have been charged but not yet convicted. That means even a detained defendant remains legally innocent. Detention may restrict liberty, but it does not shift the burden of proof to the accused and does not authorize public authorities or courts to speak as though guilt has already been established. (Kararlar Bilgi Bankası)
This point is often underestimated in practice. A detained defendant may face stronger public suspicion, harsher institutional language, and greater pressure to explain the accusation. But the legal position remains the same. Detention is not conviction. Suspicion is not proof. The prosecution still carries the burden at trial, and the court must still reach a lawful finding of guilt through admissible evidence discussed in court. The constitutional protection of innocence does not weaken merely because liberty has been restricted pending trial. (Kararlar Bilgi Bankası)
The burden of proof also has consequences after acquittal. The Constitutional Court has stated that where a person is acquitted, or where it cannot be established that the person definitely committed the offense, the presumption of innocence continues to protect that person in later linked proceedings. This is highly relevant because the burden-of-proof principle does not only govern the route to conviction. It also governs the meaning of non-conviction. If the prosecution failed to prove guilt, later authorities cannot simply proceed as though guilt had in fact been established. (Kararlar Bilgi Bankası)
For defense practice, the practical lessons are straightforward. First, every Turkish criminal case should be read through the lens of who must prove what. The prosecution must prove the act, authorship, mental element, and any other necessary component of criminal responsibility. Second, the defense should resist any attempt to shift that burden indirectly through language suggesting that the accused “failed to explain” the case well enough. Third, defense counsel should tie burden-of-proof objections to the lawful-evidence rule and to the court’s duty to reason. Fourth, where doubt remains, the defense should say so explicitly and anchor that argument in the presumption of innocence rather than presenting it as a plea for leniency. (Kararlar Bilgi Bankası)
In that sense, the burden of proof in Turkish criminal proceedings is not merely a rule of courtroom rhetoric. It is one of the core working principles of the system. It determines why investigation thresholds are different from conviction thresholds, why silence is protected, why unlawful evidence cannot be used to establish guilt, why acquittal follows when proof is insufficient, why detention does not destroy innocence, and why courts must explain how the prosecution has actually met its burden. When properly applied, it prevents criminal justice from collapsing into suspicion-driven punishment. When neglected, nearly every other fair-trial safeguard begins to weaken with it. (MGM Adalet)
Ultimately, Turkish criminal law answers the burden-of-proof question in a way consistent with constitutional democracy: innocence is the starting point, guilt must be proved according to law, the accused has no duty to prove innocence, and unresolved doubt cannot lawfully be turned into conviction. The Constitution supplies the principle, the Code of Criminal Procedure supplies the evidentiary and judgment structure, the Constitutional Court states directly that the burden rests with the prosecution, and the European Convention framework confirms that this is the minimum standard of a fair criminal process. That is why the burden of proof is not just one doctrine among many in Turkish criminal proceedings. It is one of the main lines separating lawful adjudication from arbitrary punishment. (Anayasa Mahkemesi)
Yanıt yok