Absolute grounds of unlawfulness in Turkish criminal appeals are among the most important doctrines in Turkish criminal procedure because they identify errors so serious that the law treats them as outcome-affecting without requiring the appellant to prove actual prejudice in the ordinary way. In the language of the Code of Criminal Procedure, these are the “hukuka kesin aykırılık hâlleri” listed in Article 289. They matter most at the cassation stage before Yargıtay, but they also have major consequences at the regional appellate level because the Code expressly connects some regional-appellate review powers to Article 289 as well. In practical terms, these grounds function as the clearest statutory warning that a criminal conviction cannot stand when the court was unlawfully constituted, when mandatory participants were absent, when the reasoning is missing, when the defense was unlawfully restricted on an important issue, or when the judgment relied on unlawfully obtained evidence.
The constitutional background explains why Article 289 is so central. Article 36 of the Constitution guarantees the right to claim and defend rights before judicial authorities and expressly protects the right to a fair trial. Article 38 states that no one shall be considered guilty until proven guilty by a court, that no one may be compelled to incriminate themselves or close relatives, and that findings obtained unlawfully cannot be treated as evidence. Article 141 adds that hearings are public as a rule and that all judicial decisions must be reasoned. When these guarantees are read together, the logic of absolute unlawfulness becomes clear: some trial defects are so destructive of fair trial, lawful proof, and judicial legitimacy that the law presumes their seriousness rather than asking whether the defendant can prove the exact degree of harm they caused. (Anayasa Mahkemesi)
To understand Article 289 properly, it helps to start one step earlier with Article 288. Article 288 states that cassation may be based only on unlawfulness, and that unlawfulness means the failure to apply a legal rule or the incorrect application of a legal rule. Article 289 then builds on that rule by identifying a special subset of unlawfulness: even if these issues were not specifically stated in the cassation petition or declaration, they are deemed to constitute unlawfulness as a matter of law. In other words, Article 289 does not create a separate remedy. It creates a heightened class of cassation defects that the law itself treats as decisive.
That heightened status becomes even clearer when Articles 301 and 302 are read together with Article 289. Article 301 says that Yargıtay examines only the matters stated in the cassation application and, where the application complains of procedural deficiencies, the facts identified in the application. Yet Article 302 adds that if the cassated judgment is lawful, cassation is rejected on the merits; if not, Yargıtay reverses it for unlawfulness capable of affecting the judgment, and Article 302(5) expressly preserves Article 289. The combined effect is that, although cassation is generally driven by the issues pleaded in the petition, the absolute grounds in Article 289 remain legally visible even when not properly articulated by the parties. That is why Article 289 is so important in practice: it limits the risk that a fundamentally defective judgment survives merely because the petition was not perfectly drafted.
Article 289 currently lists nine absolute grounds of unlawfulness. They are: the court not being constituted in accordance with law; participation in the judgment by a judge who was legally prohibited from acting; participation by a judge after a valid recusal situation was wrongly handled; the court unlawfully considering itself competent or authorized; conducting the hearing without the public prosecutor or other persons who are legally required to be present; violating the rule of publicity in a judgment delivered after a hearing that should have been public; failure of the judgment to contain the reasoning required by Article 230; restriction of the right of defense by court decision on a matter important to the judgment; and reliance on evidence obtained through unlawful methods. Each of these grounds reflects a different dimension of procedural legality, but all of them share the same core feature: the law presumes their seriousness.
The first absolute ground is unlawful constitution of the court. Article 289 treats it as absolute unlawfulness if the court was not formed in accordance with the law. This ground goes to the institutional legitimacy of adjudication itself. A criminal conviction is not only about what the court decided, but also about who was legally entitled to decide it. If the bench was formed contrary to statutory rules, the defect strikes at the very identity of the adjudicating body. In that sense, Article 289 recognizes that a criminal judgment cannot be cured merely by saying that the result might have been the same. A court unlawfully constituted is not the court the law authorized to convict.
The second and third absolute grounds concern the personal lawfulness of judicial participation. Article 289 treats it as absolute unlawfulness if a judge who was legally barred from acting took part in the judgment, and it likewise treats it as absolute unlawfulness if a recusal application based on valid suspicion should have been accepted but the judge still participated, or if the recusal application was unlawfully rejected and the judge then took part in the judgment. These grounds show that Turkish criminal appellate law does not confine itself to structural questions about the court as an institution. It also protects impartial adjudication at the level of the individual judge. A judgment entered by a judge who should not have sat is not merely questionable; it is presumptively unlawful under Article 289.
The fourth ground is the court’s unlawful assumption of competence or authority. Article 289 says there is absolute unlawfulness where the court unlawfully considered itself competent or authorized to hear the case. This ground matters because criminal adjudication in Turkish law is tightly organized around jurisdiction and authority rules. A conviction delivered by a court acting outside the boundaries assigned to it is not a minor procedural irregularity. It is a direct challenge to the legality of the judgment itself. This is one reason appellate lawyers must treat jurisdiction and authority objections seriously from the beginning of the case, even if the error seems technical at first glance. Article 289 confirms that such errors may later become automatic reversal grounds at cassation stage.
The fifth absolute ground concerns absence of mandatory participants. Article 289 treats it as absolute unlawfulness if the hearing was conducted in the absence of the public prosecutor or other persons who are legally required to be present at the hearing. This rule reflects a basic procedural principle: some participants are so central to the legality of the trial that a hearing held without them is not a properly constituted hearing at all. In Turkish criminal procedure, the prosecutor’s presence in the hearing is not ceremonial, and where the law requires other participants to be present, their absence is not a matter of harmless omission. Article 289 therefore protects the institutional completeness of the trial process.
The sixth ground is violation of the publicity principle. Article 289 deems it absolutely unlawful where the rule of openness was violated in a judgment delivered after a hearing that should have been public. This ground is directly connected to Article 141 of the Constitution, which makes public hearings the general rule and closed hearings the exception. Publicity is not just a matter of public relations; it is a constitutional safeguard of accountability, transparency, and trust in adjudication. When a hearing that should have been public is handled in breach of that rule, Turkish criminal appeal law treats the defect as sufficiently grave to count as absolute unlawfulness.
The seventh ground is lack of reasoning in the sense required by Article 230. Article 289 says there is absolute unlawfulness if the judgment does not contain the reasoning required by Article 230. Article 230, in turn, requires the reasoning of a conviction to address the views advanced in accusation and defense and to discuss and evaluate the evidence, including which evidence was relied on and which was rejected; it also requires the judgment to identify separately and expressly evidence in the file obtained by unlawful methods. This is a crucial connection. Article 289 does not demand merely any explanation from the court. It refers specifically to the structured reasoning duty in Article 230. A judgment that convicts without truly grappling with the evidence, the defense arguments, and the legality of the proof is therefore vulnerable not only for poor drafting but for absolute unlawfulness.
This reasoning ground has become even more important because the constitutional system itself demands justified judgments. Article 141 of the Constitution requires that all judicial decisions be written with reasons. In criminal cases, that constitutional duty is operationalized through Article 230. As a result, the absence of adequate reasoning is not a mere formal blemish. It is a failure that undermines appellate review, obstructs the defense’s ability to understand and challenge the conviction, and weakens public confidence that the judgment was reached lawfully rather than intuitively. Article 289’s treatment of missing Article 230 reasoning as absolute unlawfulness confirms that Turkish law sees this defect as structural, not cosmetic. (Anayasa Mahkemesi)
The eighth ground is restriction of the right of defense on an issue important to the judgment. Article 289 provides that where the court, by decision, restricted the defense right on a matter important for the judgment, absolute unlawfulness exists. This is one of the broadest and most practically powerful grounds in the article. It reaches beyond single procedural acts and protects the accused’s effective participation in the trial. The Constitution’s fair-trial guarantee in Article 36 gives this ground its deeper meaning. A criminal case may contain evidence, witnesses, and expert reports, but if the defense was prevented from answering the accusation meaningfully on an issue that mattered to the outcome, Article 289 treats the defect as presumptively intolerable.
This defense-right ground is especially important because not every fair-trial violation fits neatly into categories such as unlawful evidence or missing mandatory participants. Some violations arise because the defense could not examine an important witness properly, did not receive a key document in time, was denied a procedural opportunity essential to answer the charge, or was cut off from arguing a point central to the case. Article 289 does not list every possible scenario separately, but the “restriction of defense rights on an issue important to the judgment” formula captures that broader class of serious trial unfairness. It is therefore one of the most flexible and litigated absolute grounds in practice.
The ninth and final ground is reliance on evidence obtained through unlawful methods. Article 289 explicitly treats it as absolute unlawfulness where the judgment is based on evidence obtained unlawfully. This ground is anchored not only in the Code but also directly in the Constitution. Article 38 says that findings obtained unlawfully cannot be accepted as evidence. Article 230 requires judgments to identify unlawfully obtained evidence in the file, and Article 302 preserves Article 289 when Yargıtay decides whether to reject cassation on the merits or to reverse the judgment. Together, these provisions show that unlawful evidence is not merely a matter of evidentiary weight. If the conviction rests on such evidence, the defect rises to the level of absolute unlawfulness. (Anayasa Mahkemesi)
One of the most important doctrinal features of Article 289 is that these grounds are treated as unlawful even if the cassation petition or declaration did not specifically identify them. That does not mean appellate lawyers should ignore pleading discipline. On the contrary, strong petitions should still frame Article 289 issues precisely. But the statute reduces the risk that a fundamentally defective conviction will survive merely because counsel failed to use the perfect label. This is especially significant when Articles 301 and 302 are read together: Yargıtay ordinarily reviews only the issues raised in the cassation application, yet Article 302(5) preserves Article 289, making it the major statutory exception to a purely petition-bounded review model.
Absolute unlawfulness also matters beyond Yargıtay. Article 280, which regulates regional appellate review, authorizes the regional appellate court to reverse the first-instance judgment and send the file back where one of the unlawful grounds listed in Article 289 exists, except for the specific Article 289(1)(g) and (h) items that the article separately excludes from that particular remittal clause. Article 280 also empowers the regional appellate court, in other situations, to proceed to rehearing and potentially enter a new judgment. This means Article 289 is not only a cassation doctrine. It also helps shape how the regional appellate court responds to fundamental trial defects.
That link between Article 289 and Article 280 is strategically important. A defense lawyer should not think of absolute unlawfulness only as a Yargıtay-stage argument. Many of the same defects—especially unlawful court composition, absence of mandatory participants, and unlawful evidence—should be raised in the regional appellate petition as well, because the regional appellate court has its own corrective and reversal powers under Article 280. In practice, that can save time and sometimes prevent the case from reaching Yargıtay in a defective form. It also helps preserve a cleaner record for cassation if the regional appellate court fails to deal with the problem correctly.
A separate but related point concerns the nature of prejudice. In ordinary appellate litigation, many errors require the appellant to show or at least argue that the defect mattered to the outcome. Article 289 reflects a different logic. These defects are treated as so serious that the law itself presumes their importance. That is why they are often described as “absolute” or “automatic” grounds of unlawfulness. The appellant still benefits from explaining why the defect mattered in the concrete case, but the statutory structure means that the reviewing court does not begin from a blank slate as to whether the error was serious enough to matter. The Code has already answered that question in advance.
For defense practice, the first lesson is to identify Article 289 issues as early as possible. If the court was unlawfully constituted, if a recusal issue was mishandled, if the hearing went forward without a mandatory participant, if the defense was cut off on a decisive point, or if unlawfully obtained evidence entered the basis of the judgment, counsel should object promptly and build the record. Article 289 may protect the issue later even if not perfectly pleaded, but relying only on the statute’s safety net is poor strategy. The cleaner the record is, the easier it becomes for the regional appellate court or Yargıtay to see the defect as a structural violation rather than as a vague complaint.
The second lesson is that Article 230 should always be read together with Article 289. Many appellate lawyers focus on the obvious grounds such as unlawful evidence or defense-right restrictions but underuse the reasoning ground. Yet Article 230 requires the court to engage the accusation, the defense, the evidence relied upon, the evidence rejected, and the unlawfully obtained evidence in the file. A conviction that merely announces a result without performing that analytical work may already be walking into Article 289(g). In Turkish criminal appeals, weak reasoning is not just a style problem; it can be an absolute ground of unlawfulness.
The third lesson is that Article 289 does not eliminate the need to understand the overall cassation framework. Article 288 defines cassation as a legality remedy, Article 301 says Yargıtay reviews the issues raised, and Article 302 says Yargıtay either rejects the cassation on the merits or reverses for outcome-affecting unlawfulness while preserving Article 289. A strong cassation strategy therefore combines two things: it pleads the specific legal defects under Articles 288 and 294, and it also identifies any Article 289 defects that the court must treat as absolute even if the petition is incomplete. This is how the statute is designed to work.
Ultimately, absolute grounds of unlawfulness in Turkish criminal appeals serve a deeper rule-of-law purpose. They ensure that some defects are treated as categorically incompatible with a valid criminal conviction. A court unlawfully formed, a hearing conducted without required participants, a judgment lacking the reasoning Article 230 demands, a defense unlawfully restricted on a decisive issue, or a conviction resting on unlawfully obtained evidence are not errors the law is willing to trivialize. Article 289 makes that judgment explicit. Read together with Articles 36, 38, and 141 of the Constitution and with Articles 288, 301, and 302 of the Code, it shows that Turkish criminal appellate law does not ask only whether the lower court reached the right result. It also asks whether the result was reached by a court that was lawfully constituted, through a hearing that was lawfully conducted, on the basis of lawful evidence, with respect for defense rights, and in a judgment that was actually reasoned. That is why Article 289 remains one of the most important provisions in Turkish criminal appeals. (Anayasa Mahkemesi)
Yanıt yok