The prosecution phase in Turkish criminal cases is the stage that begins after the court accepts the indictment and continues through hearing preparation, trial, evidentiary debate, judgment, and the opening of appellate review. In Turkish criminal procedure, this phase is not just a continuation of the investigation. It is a separate procedural stage with its own structure, its own immediacy and publicity rules, and its own judicial responsibilities. The Code of Criminal Procedure draws that line clearly: once the indictment is accepted, the public case is deemed opened and the prosecution phase begins. (Mevzuat)
This stage also sits directly within the constitutional guarantees of fair trial. Article 36 of the Constitution protects the right to litigate as plaintiff or defendant and expressly guarantees the right to a fair trial through legitimate means and procedures. Article 38 protects the presumption of innocence, the privilege against self-incrimination, and the rule that findings obtained through illegal methods cannot be considered evidence. Article 40 requires the State to indicate legal remedies, competent authorities, and time limits where rights are affected. Article 141 further provides that court hearings are public as a rule and that all judicial decisions must be reasoned. These constitutional norms shape the prosecution phase from the first hearing date to the final judgment. (Anayasa Mahkemesi)
A practical way to understand the prosecution phase in Turkish criminal cases is to see it as the part of the proceedings where the accusation becomes a judicial dispute rather than a prosecutorial file. During the investigation, the public prosecutor collects and evaluates evidence to decide whether sufficient suspicion exists. During the prosecution phase, by contrast, the court becomes the central forum, the evidence must be handled within trial procedure, and the accused must be given a meaningful opportunity to answer the charge in court. That procedural shift matters because Turkish law does not allow conviction to rest simply on what was written in the file during the investigation. It requires a courtroom-centered adjudication process governed by the rules of hearing, defense, and lawful proof. (Mevzuat)
Acceptance of the Indictment and the Opening of the Public Case
The formal opening of the prosecution phase is governed by Article 175 of the Code of Criminal Procedure. That provision states that, with the acceptance of the indictment, the public case is opened and the prosecution phase begins. It also provides that after accepting the indictment, the court sets a hearing date and summons the persons it decides should be called to the hearing. This means Turkish law treats indictment acceptance, not merely indictment drafting, as the decisive procedural threshold. Until acceptance, the matter remains in the investigation phase; after acceptance, the court assumes procedural control over the case. (Mevzuat)
This threshold is important for defense strategy because indictment acceptance is also where the accused’s trial rights become more concrete and structured. The accusation is no longer only something being evaluated by the prosecutor. It has now entered a judicial setting where hearing dates must be fixed, summonses must be issued, and the court must begin preparing for adversarial proceedings. In Turkish criminal cases, that transition is legally meaningful because it triggers the organized trial framework rather than leaving the file in a largely prosecutor-led stage. (Mevzuat)
Service of the Indictment and Summons to the Defendant
Once the indictment is accepted, the defendant must be properly informed. Article 176 provides that the indictment is served on the defendant together with the summons paper. The same provision, as quoted in an official Constitutional Court decision, also requires that there be at least one week between service of the summons and the hearing date. For a non-detained defendant, the summons must state that if the defendant fails to attend without excuse, compulsory appearance may follow. These rules exist because the prosecution phase cannot be fair if the defendant does not know the charge in time and is not given a realistic opportunity to prepare a defense. (Kararlar Bilgi Bankası)
The service stage is therefore more than a notice formality. It is one of the main procedural guarantees of adversarial fairness. A defendant who receives the indictment late, without adequate time, or without meaningful information about the accusation is placed at a serious disadvantage from the outset of the trial stage. Turkish criminal procedure addresses that problem directly by linking service, summons, and minimum preparation time to the beginning of the prosecution phase. (Kararlar Bilgi Bankası)
Preparation of the Defense and Requests to Collect Evidence
The prosecution phase in Turkish criminal cases is not designed as a passive process in which the defendant simply waits for the hearing. Article 177 provides that the defendant may request the summoning of a witness or expert or the collection of defense evidence, and must indicate the events to which those requests relate. This is a significant feature of Turkish trial law because it confirms that the defense may actively shape the evidentiary record during the prosecution phase, not merely respond to the prosecution’s evidence after it is presented. (Mevzuat)
That rule reflects a broader fair-trial logic. The defendant’s rights are not exhausted by silence, denial, or a closing statement. Turkish procedure recognizes the defense as an evidentiary participant. The ability to ask for witnesses, experts, and defense evidence helps convert the prosecution phase into a genuine adversarial hearing rather than a one-sided validation of the indictment. In practice, this power can be decisive in cases involving technical evidence, alibi claims, conflicting factual narratives, or issues of authorship and causation. (Mevzuat)
Public Hearings and the Principle of Openness
Publicity is one of the structural principles of the prosecution phase. Article 182 of the Code states that hearings are open to everyone as a rule, although all or part of a hearing may be closed where general morality or public security strictly requires it. That rule mirrors Article 141 of the Constitution, which states that court hearings are open to the public and that closed hearings are exceptional. The prosecution phase in Turkish criminal cases is therefore built on the principle that adjudication should ordinarily occur in an open judicial setting, not behind closed administrative doors. (Mevzuat)
The publicity rule matters for more than symbolism. Open hearings support judicial accountability, help maintain confidence in criminal justice, and reinforce the defendant’s position as a party to a real judicial process rather than to a hidden bureaucratic evaluation. When Turkish law allows closed sessions, it does so only on narrow grounds and as an exception to the ordinary public character of the prosecution phase. (Mevzuat)
The Beginning of the Hearing and Judicial Control of the Trial
At the hearing itself, the court’s procedural role becomes visible. Official UYAP search text for the Code shows that, when the defendant states that he is ready to make explanations, his interrogation is conducted according to law, and the following article assigns the presiding judge or judge responsibility for directing the hearing. Even from that brief statutory structure, the logic is clear: the prosecution phase is court-directed, and the hearing begins not with a prosecutor-run file review but with formal judicial handling of the defendant and the case. (Mevzuat)
This judicial control is a core difference between investigation and prosecution. During the investigation, the prosecutor is the central legal actor. During the prosecution phase, the judge or panel becomes the authority that manages the hearing, hears the parties, controls order, and ultimately evaluates the evidence and delivers judgment. In Turkish criminal cases, that transfer of procedural leadership is one of the defining features of the prosecution stage. (Mevzuat)
Evidence, Discussion, and the Courtroom Standard of Proof
The prosecution phase is where Turkish law insists that proof be trial-based and lawful. Article 217 states that the charged offense may be proved by any kind of evidence obtained lawfully. It also requires that the decision be based on evidence presented and discussed before the court. This is one of the most important provisions in Turkish criminal procedure because it prevents conviction from resting merely on investigation-file materials in the abstract. The court must evaluate evidence in the hearing framework, and the offense may be proven only with lawfully obtained proof. (Mevzuat)
That rule also explains why the prosecution phase is not just a formal confirmation of the indictment. It is the stage in which the court must hear, test, and assess the evidence within the procedural conditions of trial. If the evidence was obtained unlawfully, Article 38 of the Constitution and Article 217 of the Code together block its proper use as the basis of conviction. If the evidence was not adequately discussed in court, its role in the final judgment becomes vulnerable as a matter of fair trial and reasoning. (Anayasa Mahkemesi)
The European Court of Human Rights’ current Article 6 criminal materials reflect the same broader fair-trial themes, including access to a lawyer, administration of unlawfully obtained evidence, examination of witnesses, presence at hearings, and the presumption of innocence. That wider Convention context helps explain why Turkish prosecution-phase rules are so focused on courtroom handling of evidence, openness, and defense participation. (ECHR-KS)
Reasoned Judgments and the Court’s Duty to Explain
A defining feature of the prosecution phase in Turkish criminal cases is that it ends not simply with an outcome, but with a reasoned judicial decision. Article 141 of the Constitution states that all court decisions must be written with a justification. The UYAP text for Article 230 of the Code likewise shows that, in the reasoning of a conviction, the court must explain the evidence and the concrete facts supporting the conclusion. This requirement is not a technical afterthought. It is a fundamental guarantee that the decision emerged from lawful adjudication rather than unexplained judicial preference. (Anayasa Mahkemesi)
Reasoning matters because the prosecution phase is the point where competing narratives are resolved by the court. The indictment, the defense, the witness testimony, the expert material, and the documentary evidence all converge at judgment. Without reasoned findings, the accused cannot meaningfully challenge the judgment, the appellate courts cannot effectively review it, and the public character of criminal justice loses much of its value. Turkish constitutional and statutory law therefore make justification an essential element of the prosecution phase itself. (Anayasa Mahkemesi)
Types of Judgments at the End of the Prosecution Phase
Article 223 governs the forms of judgment at the end of trial. Official UYAP search text shows that, after the end of the hearing is declared, the court gives judgment, and the recognized outcomes include acquittal, a decision that no punishment is to be imposed, conviction, imposition of a security measure, dismissal, and discontinuance. This provision is important because it shows that the prosecution phase in Turkish criminal cases is not binary. The court is not limited to either conviction or acquittal in the narrow everyday sense. Turkish law provides a structured range of possible final decisions depending on the legal and evidentiary situation. (Mevzuat)
That structure is also valuable analytically. It reminds us that the prosecution phase is where the court must not only decide whether the accusation is proven, but also determine what kind of legal result the case requires. A failure of proof may lead to acquittal. Other legal circumstances may lead to dismissal or discontinuance. Where the offense is established and punishment conditions are met, conviction follows. The prosecution phase is therefore the stage in which legal characterization, factual proof, and procedural validity all culminate in one of several legally defined outcomes. (Mevzuat)
The Link Between the Prosecution Phase and Appeal
The prosecution phase does not exist in isolation from appellate review. Official UYAP text for Article 272 states that judgments rendered by first-instance courts may be challenged by appeal before the regional appellate court, with the important addition that sentences of fifteen years or more are subject to automatic regional-appellate review. Official UYAP text for Article 286 further shows that cassation review before the Court of Cassation remains available for eligible regional-appellate criminal decisions. This means the prosecution phase is also the stage where the record for appellate review is built. (Mevzuat)
That appellate connection is crucial. Errors in service, restrictions on defense evidence, unlawful use of evidence, failures of reasoning, and mistakes in the courtroom handling of the case do not become important only after judgment. They matter during the prosecution phase because that is when they are created, objected to, preserved, or left unchallenged. In Turkish criminal cases, a well-managed prosecution-phase defense is often the foundation of later appeal and cassation arguments. (Anayasa Mahkemesi)
Why the Prosecution Phase Matters So Much
The prosecution phase matters because it is where suspicion is transformed into adjudication. During the investigation, the prosecutor asks whether there is sufficient suspicion to charge. During the prosecution phase, the court asks whether the charge is proven within the legal framework of hearing, defense, and lawful evidence. Turkish law deliberately separates those stages because the fairness demands of courtroom adjudication are different from the aims of pre-trial investigation. Acceptance of the indictment opens the public case, but only the prosecution phase determines whether that case can lawfully end in conviction or another judgment. (Mevzuat)
For that reason, the prosecution phase in Turkish criminal cases should be understood as the central judicial stage of the criminal process. It is where the indictment is confronted, the defendant is formally summoned and informed, defense evidence may be requested, the hearing is ordinarily public, lawful evidence is discussed before the court, the judgment must be reasoned, and the foundation for appeal is built. The constitutional guarantees of fair trial, publicity, innocence, lawful proof, and effective remedies all converge here. In Turkish criminal procedure, the prosecution phase is not merely what happens after the file leaves the prosecutor. It is the point at which criminal accusation must justify itself before a court. (Anayasa Mahkemesi)
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