How appeals work in Turkish criminal cases is one of the most important practical questions in Turkish criminal procedure because a criminal judgment is rarely the end of the legal story. In Türkiye, the appeal system is structured to give parties a meaningful opportunity to challenge errors of fact, law, procedure, reasoning, and sentencing after a first-instance criminal judgment. The ordinary system is built mainly around two levels of review: istinaf, which is review by the regional appellate court (bölge adliye mahkemesi), and temyiz, which is cassation review by the Court of Cassation (Yargıtay). The Code of Criminal Procedure also preserves several extraordinary remedies for final decisions, including objections by chief public prosecutors, reversal in the interest of law, and retrial in limited circumstances.
The constitutional basis of criminal appeals in Türkiye is broader than a single article about “appeal rights.” Article 36 of the Constitution guarantees the right to litigate as plaintiff or defendant and the right to a fair trial. Article 38 protects the presumption of innocence, the privilege against self-incrimination, and the rule that findings obtained through illegal methods cannot be treated as evidence. Article 40 requires the State to indicate the available legal remedies, competent authorities, and time limits where rights are affected. Article 141 adds that hearings are public as a rule and that all judicial decisions must be reasoned. Together, these guarantees explain why appellate review matters: a criminal judgment must be legally reasoned, based on lawful evidence, and open to challenge through the remedies the law provides. (Anayasa Mahkemesi)
The Basic Structure of Criminal Appeals in Turkey
The ordinary criminal appeal structure begins with istinaf. Article 272 of the Code states that judgments of first-instance courts may be challenged by way of appeal to the regional appellate court. The same provision also says that judgments imposing fifteen years or more of imprisonment are reviewed ex officio by the regional appellate court even if no party files an appeal. Article 272 also allows certain rulings given before judgment, if they formed the basis of the judgment or if no separate remedy exists, to be challenged together with the judgment.
This first layer is extremely important because Turkish istinaf is not a purely symbolic review. The regional appellate court may reject the appeal on the merits, correct certain legal errors, reverse and send the case back, or in other situations reopen the case, hold a hearing, and enter a new judgment itself. In that sense, the first appeal stage in Turkish criminal law can involve not only legal scrutiny but also renewed procedural activity and, when necessary, a new evidentiary or hearing phase.
The second ordinary level is temyiz, or cassation review before Yargıtay. Article 286 states that criminal chamber judgments of the regional appellate courts, other than reversal decisions, may be subject to cassation, but the same article also lists several categories of regional-appellate decisions that are not open to cassation. Article 288 then makes the nature of cassation review explicit: cassation is based only on unlawfulness, and unlawfulness means the failure to apply a rule of law or the incorrect application of a rule of law. That means Yargıtay review is primarily law-focused, even though in practice questions of reasoning, procedure, and evidentiary legality can be deeply outcome-determinative.
Who May Appeal in a Turkish Criminal Case
The right to use legal remedies is governed by Article 260 and the provisions that follow. The Code states that appeals are open to the public prosecutor, the suspect or accused, the persons who have acquired the status of participant, and certain crime victims or persons entitled to participate whose request was not decided or was rejected. Article 260 also states that prosecutors may appeal in favor of the accused as well as against the accused. Article 261 allows a lawyer to file an appeal so long as this is not contrary to the client’s express wish. Article 262 gives the accused’s legal representative and spouse the right to apply for remedies open to the accused. Article 263 then adds a special rule for detained persons: a detained suspect or accused may file a remedy application by giving a statement to the court clerk or to the prison administration, and once the clerk or prison director completes the required record, the statutory time limit is deemed interrupted. Article 264 further protects parties by stating that a mistake in identifying the remedy or the competent authority does not destroy rights, and the application must be forwarded to the correct authority.
These rules matter greatly in practice. Turkish criminal appellate law is not designed only for professional lawyers. The Code also protects detained defendants, spouses, legal representatives, and parties who mislabel the remedy but make a timely and otherwise admissible filing. That design reflects Article 40 of the Constitution, which requires the State to indicate remedies and time limits when rights are affected.
How Istinaf Works: The First Appeal Stage
Article 273 governs the filing of istinaf. It provides that the appeal request must be made within two weeks from the date on which the reasoned judgment is served. The application is filed with the court that gave the judgment, either by petition or by making a statement to the clerk, which is then recorded and approved. The same two-week period also appears in the provisions governing reply to the appeal by the opposing party. Article 275 adds that a timely istinaf application prevents the judgment from becoming final.
That two-week rule is an especially important practical point because it is a current feature of the Code. Article 273, Article 277, and related provisions reflect amendments that changed older shorter deadlines to two weeks. In criminal appeal practice, missing this deadline can be fatal unless a separate restoration mechanism is available and properly used.
The first procedural filter appears in Article 276. If the appeal is filed late, concerns a judgment that is not appealable, or is filed by someone without standing, the court that gave the judgment rejects it. But that is not always the final word. The prosecutor or other interested party may ask the regional appellate court to decide the matter within two weeks of notification of the rejection. Article 277 then provides that if the trial court does not reject the appeal, a copy of the appeal petition or statement is served on the opposing party, which may respond within two weeks, and the file is then sent to the regional appellate court.
The regional appellate court performs a preliminary review under Article 279. If it lacks territorial authority, it sends the file to the correct regional appellate court. If the appeal was late, concerns a non-appealable ruling, or was filed by someone without standing, it rejects the application. The Code expressly states that these pre-review rejection decisions are themselves subject to objection.
What the Regional Appellate Court Can Do
Article 280 is the key provision on what the regional appellate court may do on the merits. After reviewing the file and any evidence submitted with it, the court may reject the appeal on the merits if it finds no procedural or substantive unlawfulness, no evidentiary or procedural deficiency, and a proper assessment of proof by the first-instance court. In some situations it may also correct specific legal errors and still reject the appeal on the merits. In other cases, it may reverse the judgment and send the case back to the first-instance court or another suitable first-instance court, especially where there is a ground of absolute unlawfulness or where certain procedural prerequisites were missing. In still other situations, Article 280 allows the regional appellate court to take the necessary steps and begin rehearing the case itself. Article 280(2) then states that, at the end of the hearing, the regional appellate court either rejects the appeal on the merits or sets aside the first-instance judgment and enters a new judgment.
This is one of the most distinctive features of how appeals work in Turkish criminal cases. The regional appellate court is not limited to either affirming or remanding in a narrow common-law sense. Under the Code, it may sometimes cure legal defects, sometimes reverse and remit, and sometimes reopen the case and render a new judgment itself. That makes istinaf a powerful and flexible appellate stage.
If the regional appellate court decides to hold a hearing, Article 281 governs preparation and Article 282 states that the general rules on hearing preparation, hearing, and decision apply, with listed adaptations. The regional appellate court may decide to hear witnesses or experts and conduct an inspection. The appellate hearing begins with the chamber member’s review report, then the first-instance judgment is summarized, and the relevant witness statements, inspection minutes, and expert reports are described. Evidence collected in appellate preparation is also described. Article 282 further states that if the accused, defense counsel, participant, or representative fails to appear despite service of notice, the appellate hearing may continue and end in their absence by describing the accused’s earlier questioning minutes; however, if the regional appellate court is going to impose a penalty heavier than the first-instance sentence, the accused must in any case be heard.
Another important safeguard appears in Article 283. If only the accused appealed, the new judgment cannot be heavier than the earlier judgment. This is the familiar ban on reformatio in peius in favor of the sole appellant accused.
Which First-Instance Judgments Cannot Be Appealed by Istinaf
Article 272 also contains important non-appealable categories. As the current official text shows, no istinaf lies against convictions resulting only in a judicial fine up to 15,000 Turkish lira, except fines converted from prison terms, against acquittals for offenses punishable only by judicial fines with an upper limit not exceeding 500 days, and against judgments that the law expressly marks as final. Article 272 also states that judgments made final under this rule do not count as a basis for recidivism.
This means the Turkish criminal appeal system is broad, but not unlimited. A proper appeal analysis must always begin with appealability. Before drafting grounds of appeal, counsel should first verify whether the judgment falls within Article 272’s appealable universe or one of its statutory exceptions.
How Temyiz Works: Cassation Before Yargıtay
The second ordinary stage is cassation. Article 286 states that criminal chamber judgments of the regional appellate courts, other than reversal decisions, may be challenged by cassation. But Article 286 also creates a substantial list of non-cassable regional-appellate judgments. These include, among others, regional-appellate decisions rejecting on the merits appeals against first-instance sentences of five years or less and any amount of judicial fine, regional-appellate decisions that do not increase first-instance prison terms of five years or less, various decisions concerning alternative sanctions replacing imprisonment, some decisions in offenses with a statutory upper limit of up to two years’ imprisonment, certain judicial-fine cases, some confiscation-only decisions, and certain acquittal or no-penalty decisions within stated limits. Article 286(3), however, restores cassation for several specifically listed offenses even if they would otherwise fall within the non-cassable categories, including some public-order, speech-related, terrorism-related, and organization-related crimes.
Cassation is filed under Article 291, which—like istinaf—currently requires filing within two weeks from service of the reasoned judgment. The application is filed with the court that gave the judgment by petition or clerk-recorded statement, and the special rule for detained defendants under Article 263 remains preserved.
The nature of cassation review is defined by Article 288. Cassation can be based only on unlawfulness, and unlawfulness means the non-application or misapplication of a legal rule. Article 289 then lists situations deemed to be absolute unlawfulness even if not specifically raised in the cassation petition. These include unlawful constitution of the court, participation of a judge who should not have sat, unlawful rejection of a valid recusal request, the court unlawfully considering itself competent or authorized, conducting the hearing without the prosecutor or other mandatory participants, violation of the publicity rule in a hearing that should have been public, failure of the judgment to contain the reasoning required by Article 230, unlawful restriction of defense rights on matters important to the judgment, and reliance on evidence obtained through unlawful methods.
These provisions are essential because they show that Yargıtay review is law-focused, but not narrow in a superficial sense. Issues such as missing reasoning, restriction of defense, unlawful evidence, and unlawful court composition are “legal” issues in the strongest possible way, and they can completely overturn the validity of the judgment.
Hearings at Yargıtay
Cassation is usually a file-based review, but Article 299 allows oral hearings in limited situations. The current text provides that in judgments involving ten years or more of imprisonment, Yargıtay may, if it considers it appropriate, conduct its examination by hearing. The accused, participant, defense counsel, and representative are notified of the hearing date. The accused may attend or be represented by defense counsel, but a detained accused may not request to attend the hearing personally. Article 300 then governs the procedure: after the internal report is explained and the members have reviewed the file, the hearing is opened, the Chief Public Prosecutor of Yargıtay or a delegated prosecutor, the accused, defense counsel, the participant, and representative present their arguments, the party who filed the cassation gets the floor first, and the accused always has the final word.
So while cassation is primarily legality review, Turkish law still leaves room for oral argument before Yargıtay in serious cases. That makes the cassation stage more flexible than a purely written legality review, although the hearing remains discretionary and limited.
What Yargıtay Can Do
Article 302 states that if Yargıtay finds the regional-appellate judgment lawful, it rejects the cassation on the merits. If it finds the challenged judgment unlawful in a way that could affect the outcome, it reverses the judgment and must state the grounds of reversal separately. It must also mention other detected legal defects even if not explained in the petition when the judgment is reversed for stated reasons. Article 303 then allows Yargıtay, in some limited situations, to correct the unlawfulness itself or even rule on the merits directly—for example where no further factual clarification is needed and the case calls for acquittal, dismissal, or a fixed penalty, or where the error is of a type listed in the statute. Article 304 regulates where the file goes after Yargıtay’s decision: depending on the case, the file may go to the first-instance court, the regional appellate court, or another appropriate court.
This means Yargıtay is not limited to a one-word “affirm” or “reverse” model. The Code allows it to reject, reverse, correct certain legal errors, and in some scenarios directly determine the result without sending the case back for full retrial.
Extraordinary Remedies After Finality
How appeals work in Turkish criminal cases also includes extraordinary remedies after ordinary review is exhausted or unavailable. Article 308 allows the Chief Public Prosecutor of Yargıtay to object, on his own motion or on request, to a criminal chamber decision of Yargıtay within one month from receipt of the decision; there is no time limit for objections in favor of the accused. Article 308/A creates a similar mechanism for the chief public prosecutor at the regional appellate court against final criminal chamber decisions of that court, again within one month, with no time limit when the objection is in favor of the accused. The current text also requires that, for an objection against the accused, there must be a substantial error capable of affecting the decision, and the objection must be served on the accused or defense counsel, who may respond within two weeks.
Article 309 creates reversal in the interest of law. If the Ministry of Justice learns that a judge’s or court’s final decision or judgment became final without going through istinaf or temyiz review and contains unlawfulness, the Ministry may ask the Chief Public Prosecutor of Yargıtay to seek reversal in the interest of law. Article 311 then regulates retrial in favor of the convicted person in listed circumstances, such as new evidence or other statutory grounds. These are not substitutes for ordinary appeal deadlines, but they are important safety valves in the Turkish system.
Practical Takeaways
From a practical standpoint, criminal appeals in Türkiye work best when the party challenging the judgment answers five questions clearly. First, is the judgment appealable or cassable at all, or does it fall into one of the statutory no-remedy categories? Second, who is filing, and does that person have standing under Articles 260 to 263? Third, was the filing made within the current two-week deadline for istinaf or temyiz? Fourth, what kind of error is being alleged: factual assessment, evidentiary incompleteness, procedural defect, missing reasoning, unlawful evidence, misapplication of law, or sentencing error? Fifth, what remedy is legally available: regional-appellate review, cassation, chief-prosecutor objection, reversal in the interest of law, or retrial?
The most common mistake in practice is to think of appeal as a generic complaint that “the court was wrong.” Turkish criminal appellate law is much more structured. Regional-appellate review can engage both facts and law more deeply and can even lead to a new judgment, while cassation is focused on unlawfulness and the kinds of legal defects identified in Articles 288 and 289. A strong appeal or cassation petition therefore needs to be built around the actual statutory architecture of the relevant remedy.
Conclusion
How appeals work in Turkish criminal cases can be summarized this way: most first-instance criminal judgments can be challenged first by istinaf to the regional appellate court, usually within two weeks of service of the reasoned judgment; some serious sentences are reviewed there automatically; the regional appellate court may reject, correct, reverse, reopen the case, or enter a new judgment; some of its judgments can then be challenged by temyiz before Yargıtay, again usually within two weeks, but several categories are excluded from cassation; Yargıtay reviews legality, including absolute unlawfulness such as missing reasoning, unlawful evidence, or serious defense-rights violations; and after finality, extraordinary remedies such as chief-prosecutor objections, reversal in the interest of law, and retrial remain available in limited situations. The Turkish criminal appeal system is therefore layered, technical, and rights-sensitive. It is not just a second chance to disagree with the judgment. It is the legal mechanism through which procedural fairness, lawful proof, and correct application of criminal law are tested after trial.
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