What Is the Serial Trial Procedure? Conditions, Sentence Reduction, Objection and Recidivism

The serial trial procedure (seri muhakeme usulü) is a special criminal procedure, applied under judicial supervision for certain offences listed in the law, in which the prosecutor's proposal is accepted by the suspect in the presence of his or her lawyer. The sentence is reduced by half under the method in Article 250 of the Code of Criminal Procedure (CMK). However, this advantage does not mean that the decision will have no consequences for the criminal record, for security measures or for recidivism in an offence committed later. [1]

The question that a person who receives a proposal must assess is not merely "how many months will I receive?" Whether the elements of the offence are present, the sufficiency of the evidence, the scope of the acceptance, the conditions for HAGB or deferral, and the possibility of objection must be examined together. Accepting the procedure is not the same as automatically confessing all the material facts of the offence; nevertheless, a final conviction given at the end of the procedure may have legal consequences. This distinction is at the centre of the current debate on recidivism.

What Is the Difference Between the Serial Trial Procedure and Simplified Proceedings?

The term "serial proceedings" used in everyday language corresponds in law to the serial trial procedure. This institution differs from the simplified proceedings in Articles 251–252 CMK. The fact that both procedures provide a sentence reduction does not mean that the rules on remedies or hearings are the same.

The serial trial procedure is not an acquittal, an amnesty or an administrative fine procedure. Nor is it the same institution as mediation: in mediation the agreement between the victim and the suspect is central, whereas in the serial procedure the statutory sanction is determined by the prosecutor, accepted by the suspect and imposed by the court. The special provisions on offences subject to payment of a fixed penalty and mediation apply to those offences. [1–2]

In Which Offences and Under Which Conditions Does the Serial Trial Procedure Apply?

Which Offences Are Covered?

Not every offence or every act carrying a light penalty is subject to the serial trial procedure. The number of the statutory article and paragraph is as decisive as the name of the offence. The list in Article 250(1) CMK is as follows:

Old lists must not be used as they stand. Paragraphs one and five of Article 13 of Law No. 6136 are no longer included in this list following the amendment by Law No. 7533. For TCK Art. 170, the division of paragraphs after Law No. 7571 must also be observed. If the date of the offence is older, the application of the amendments in time is separately assessed. [1]

Why Are Sufficient Suspicion and the Examination of Deferral Important?

The prosecutor must first investigate the truth of the event and gather the evidence both for and against the suspect. If there is no sufficient suspicion to bring a public prosecution, it is not correct to propose the serial procedure merely to finish the file quickly. Where the conditions exist, a decision of non-prosecution must be given.

Where sufficient suspicion exists, postponement of the bringing of the public prosecution is also considered. Article 250 CMK requires that no such postponement has been ordered. If the conditions for postponement do not exist or it is not applied, the serial procedure proceeds after the other conditions for the offence within the scope have also been examined. The duty to initiate the procedure lies with the prosecutor; the suspect is under no obligation to accept. [1–2]

In Which Situations Does the Serial Trial Procedure Not Apply?

The procedure does not apply where the suspect is a minor or suffers from mental illness. Where an offence is committed jointly, the refusal of one of the suspects to accept also prevents the procedure from being applied. The joint commission of a covered offence with another offence outside the scope is a further bar. For this purpose, the legal and factual connection between the offences in the file must be examined; it must not be assumed that all investigations concerning the same person at different times form a single transaction.

In cases where the person cannot be found at the address notified to the official authorities and recorded in the investigation file, or is abroad, the provision in Article 250(13) CMK is taken into account. By contrast, the earlier general justification of "being unreachable for any other reason" can no longer be used in the same way. [1, 4]

What Changed Through the Constitutional Court Decisions Effective in 2025 and 2026?

In its decision of November 5, 2024, E.2024/66, K.2024/188, the Constitutional Court (Anayasa Mahkemesi, AYM) annulled the phrase excluding the serial procedure entirely on the ground of "deafness and muteness." The decision was published in the Official Gazette (Resmî Gazete) of March 10, 2025. The reasoning in particular assessed the distinction between persons aged twenty-one and over, with full criminal responsibility, and other adults, together with the safeguards of defence counsel and interpreter. Accordingly, a hearing or speech impairment cannot be presented on its own as a current absolute prohibition; the person's age, criminal responsibility and the necessary communication support are separately examined. [3]

In its decision of September 10, 2025, E.2025/51, K.2025/184, the Constitutional Court annulled the phrase in Article 250(13) CMK "or the suspect being otherwise unreachable". The application arose from a case concerning an offence with a knife or other instruments, and the guarantees of the summons arrangement, which led to the person losing the sentence reduction, were examined. The annulment entered into force on September 3, 2026, at the end of the nine-month deferral of the decision published on December 3, 2025. [4]

This decision does not mean that all summonses are invalid or that the serial procedure will necessarily be applied to every person abroad. The concrete file must show which summons was made, to whom the notice reached, the excuse and the reason why the procedure was not applied. The idea that a legal opportunity has been given up merely on the basis of a single unsuccessful telephone call must be scrutinized in particular in the light of this decision.

How Does the Process Proceed from the Prosecutor's Summons to the Court's Decision?

On receipt of the prosecutor's summons, the file number, the offence alleged and the purpose of the meeting must be ascertained. A summons and acceptance are not the same act. Article 5(7) of the Regulation provides that compulsory appearance or arrest may not be resorted to for the sole purpose of making a serial procedure proposal. This rule does not mean that an arrest or protective measure ordered for another legal reason is automatically extinguished.

The prosecutor must explain which offence the facts constitute, the proposed sanction, the sentence reduction, the right not to accept and the consequences of the decision. The fact that the police may give general information is not an alternative to the proposal of the Chief Public Prosecutor (Cumhuriyet savcısı) and to the conditions for acceptance in the law.

If the suspect accepts, the penalty, and any HAGB, deferral, alternative sanction or security measure, are recorded in the minutes. The minutes are signed by the prosecutor, the suspect and defence counsel. The prosecutor then submits a request document (talepname) to the competent court of first instance for criminal matters (asliye ceza mahkemesi). The request must include a summary of the event, the offence and statutory articles, the conditions of acceptance and the proposed sanction. This document is not the same as the indictment in the ordinary procedure.

The Regulation provides for referral to the court on the same day after acceptance and for the court to review the request without delay. However, it cannot be said that every file will in fact be concluded on the same day, because of missing documents, the need for an interpreter or a calculation that must be corrected. The aim of speed must not render ineffective the right to examine the file and to prepare the defence. [1–2]

Are a Lawyer and an Interpreter Compulsory in the Serial Trial Procedure?

A valid acceptance of the proposal must be made in the presence of defence counsel. If the suspect does not have a lawyer of his or her choice, defence counsel must be appointed without any request. The court must also hear the suspect in the presence of defence counsel. The fact that a lawyer was present before the prosecutor does not replace the guarantee at the court stage. A similar situation is addressed separately in the article on questioning and interrogation in a criminal investigation.

Information or rejection of the proposal and acceptance of the proposal are not the same stage. The condition of defence counsel required for acceptance must not be extended to mean that every telephone call or every statement of rejection can be made only with a lawyer. On the other hand, the lawyer's signature on the acceptance minutes alone does not end all discussion of whether the acceptance was informed. The opportunity to consult, the consequences explained and any difficulty of communication are important.

Persons who do not know Turkish sufficiently to express themselves must be provided with interpreter support under Article 202 CMK. The necessary communication guarantees also apply to persons with a hearing or speech impairment. That a person partly understands everyday conversation does not, on its own, show that he or she understands legal consequences such as recidivism or HAGB. That a person is a foreign national is not, by itself, an obstacle to the serial procedure; the regulation of residence abroad is a separate matter. [1–3]

Can the Proposal Be Rejected, and Can Acceptance Be Withdrawn?

The suspect may reject the proposal. In addition, at his or her request, a reasonable period not exceeding one month is given to consider the proposal. This does not mean that there is an automatic one-month waiting period in every file; the need for consideration must be stated clearly and the period granted must be recorded. [2]

Even after acceptance, the will may be withdrawn until the court pronounces judgment. A person who fails to attend court without excuse is regarded as having withdrawn under the provision of the law. If there is a valid excuse, it is important that it be notified without delay with documentary evidence. At a stage after judgment, however, it is not enough merely to say "I withdraw"; the appropriate legal remedy must be pursued.

If the procedure is not completed, the investigation is concluded in accordance with the general provisions. This does not necessarily mean that a conviction will be given. The evidence and procedural requirements are assessed; depending on the conditions, a public prosecution may be brought or another decision given. If a conviction is entered under the general procedure, the sentence reduction specific to the serial procedure is not automatically preserved. By contrast, the use of rejection or withdrawal is not an independent ground for increasing the sentence in order to punish the person.

Under Article 250(10) CMK, where the procedure is not completed, the declarations of acceptance and other documents relating to the application of the procedure may not be used as evidence in the subsequent investigation and prosecution. This protection does not ensure that all the evidence concerning the event that was previously and lawfully collected is disregarded. For example, a camera recording which is independent of the procedure does not have the same legal status as the acceptance minutes. [1]

How Are Sentence Reduction, HAGB and Deferral Assessed in the Serial Trial Procedure?

How Is the Half Reduction Calculated?

The prosecutor determines the basic penalty between the lower and upper limits of the offence according to the criteria in Article 61(1) TCK. Where the conditions exist, the prosecutor applies the provisions on continuing offences and then makes the half reduction under Article 250(4) CMK. It is therefore incorrect to state that "in every case, half of the statutory minimum is imposed."

For illustration only, in an example where the penalty lawfully determined before the serial procedure reduction is eight months, the half reduction produces four months. This example does not show the penalty range for any particular offence or the outcome of any concrete file. Where a judicial fine is involved, the number of days, the amount per day and the provisions applicable according to the date of the offence must be checked separately.

It must not be assumed that all increases and reductions in the general procedure are carried over into the serial procedure in the same order. In its decision of October 2, 2024, E.2023/1793, K.2024/7299, the 8th Criminal Chamber of the Court of Cassation (Yargıtay 8. Ceza Dairesi), examined a judgment given under the serial procedure on the ground of a breach of Law No. 6136. The objection authority asked for a discussion of why TCK Art. 62 had not been applied. The Chamber stated that TCK Art. 62 cannot apply in this special procedure and, by reversing in the interest of the law (kanun yararına bozma), accepted the objection. Accordingly, no acceptance decision should be made on the assumption that a discretionary reduction will follow the half reduction. The former penalty amounts in that decision are not the current tariff or penalty calculation. [12]

Are HAGB, Deferral of a Prison Sentence and Conversion into a Judicial Fine the Same?

Article 250(5)–(6) CMK provides for the possibility of alternative sanctions under TCK Art. 50, deferral of the prison sentence under TCK Art. 51, and HAGB by analogous application of CMK Art. 231, where the conditions are met. None of these is an automatic result merely because the serial procedure has been accepted.

In HAGB, the legal effects of the judgment established are deferred; the exception for confiscation in the law is reserved. In the deferral of a prison sentence, by contrast, an existing conviction exists. The conversion of a prison sentence into a judicial fine also does not eliminate the conviction. These distinctions are decisive in assessing the criminal record and recidivism.

The 2026 update is also important: through Article 15 of Law No. 7589, paragraphs five to fourteen of CMK Art. 231 were reorganized. One cannot conclude from reading only the earlier Constitutional Court annulment or the former text of the article that the institution has disappeared entirely. Conditions such as the sentence imposed, the earlier intentional conviction, the belief that the person will not commit a further offence, and compensation of the damage must be assessed under the current regulation. [5]

Can the Court Change the Prosecutor's Proposal?

The court is not merely an approving authority that checks signatures. Under Article 250(9) CMK, the statutory conditions of acceptance, whether the offence falls within the scope and whether conviction is required on the basis of the evidence in the file are examined. Where the conditions are met, the court must render judgment not more severe than the sanction in the request; it has the power to impose a lighter sanction.

Where mandatory elements of the request are missing, there is a material error in the calculation, or the objective conditions for HAGB, deferral or alternative sanctions are not met, the completion procedure under Article 250(8) CMK arises. The rejection of the request is distinct from return of the file, because the conditions of the serial procedure are not present for that correction.

If the court reaches the conclusion, on the evidence available, that conviction is not required, it rejects the request and sends the file to the prosecutor for conclusion under the general provisions. This rejection does not mean that the person was automatically acquitted in a serial procedure hearing. [1]

The Constitutional Court's decision of March 31, 2021, E.2020/35, K.2021/26 shows the importance of this review. In an application concerning the offence of false declaration in the preparation of an official document, the former wording binding the court to the sanction determined by the prosecutor was examined. The Constitutional Court held that restricting the court's power to decide on the judgment according to its assessment of the evidence and its conscientious conviction was problematic from the standpoint of judicial independence and the presumption of innocence, and annulled the phrase. The examination concerned the offence raised in that application. [6]

In a dissenting opinion, Hasan Tahsin Gökcan argued that the annulment of that phrase alone was not sufficient and that the limits of review in the remaining part of the paragraph were also problematic. This is not the same as the scope of the majority's annulment. Current practice must be assessed by reference to Article 250(9) CMK as amended by Law No. 7331 after the annulment; the former description that the court could not interfere with the sanction at all must not be repeated.

How and Within What Period Can a Decision in the Serial Trial Procedure Be Objected To?

What Is the Period for Objection and the Competent Authority?

Article 250(14) CMK regulates the objection remedy against a judgment established within the serial procedure. The current general period, under Article 268(1) CMK, is two weeks from the lawful notification of the decision. It is incorrect to apply the former seven-day period to current files. Where the date of the decision is older, the transitional provisions must be examined separately.

The start of the period must not be accepted in every file merely as "the day the reasoned decision reached the house." The announcement of the decision, its service, notification to defence counsel and the statement of the available remedy are assessed together. The calculation of weekly periods and the fact that the last day falls on a public holiday are dealt with under Article 39 CMK. If there is a claim of missing the period without fault, the conditions for restoration to the former position are assessed separately.

The petition is submitted to the court that gave the decision. A declaration may also be made to the clerk of the court for recording in the minutes; the law provides for this. If the court finds the objection well founded, it corrects its decision; otherwise, within three days at most, it sends the file to the competent authority. An objection against decisions of the court of first instance for criminal matters is examined by the heavy criminal court (ağır ceza mahkemesi) in the judicial district, under the general rule on competence. The right to apply of the Chief Public Prosecutor, the suspect or accused, defence counsel and other interested persons is determined under Article 260 CMK et seq. The right of a victim or of a person harmed by the offence to apply, and the notification of the decision to them, must also be separately observed. [1–2]

Which Matters May Be Raised in an Objection?

The authority examining the objection reviews the conditions in Article 250(3) and (9) CMK. Accordingly, the following matters, explained in relation to the facts, may in particular be raised:

• That acceptance was not made in the presence of defence counsel and of free will; that the consequences of the proposal were not adequately explained.
• That an interpreter or the necessary communication support was not provided.
• That the conduct falls outside the catalogue of offences or that a statutory obstacle to application exists.
• That the elements of the offence are not present or that the evidence in the file does not support a conviction.
• That the court imposed a more severe sanction than the request; that the calculation of the penalty or the statutory conditions were wrongly assessed.

The statement "I signed but I no longer want it" does not carry the same weight as concrete facts and documents showing that the acceptance is legally invalid. Each claim in the objection petition must be linked to the acceptance minutes, the request, the court minutes, the notification or the relevant evidence. The content of the information and defence counsel's entries in the acceptance minutes must also be explained, since they are strong data that may be used against the allegation.

It cannot be said that an objection will necessarily lead to a general hearing, to an acquittal or to the preservation of the half reduction in every case. The objection mechanism of the simplified proceedings under Article 252 CMK does not apply to the serial procedure in the same way. The authority decides within the limits of statutory review; the effect of the decision depends on the error alleged and the state of the file.

How Are Appeal, HAGB and Finality Distinguished?

The special ordinary remedy provided for a decision in the serial procedure is the objection. The fact that the general HAGB regulation provides for appeal provisions under Article 231(12) CMK does not require that the same remedy be applied directly to all decisions given within the serial procedure. It must be determined whether the decision was given under Article 250 CMK or as the outcome of a general trial, and which judgment has been made the subject of the remedy. The article on appeal and effective defence in criminal cases may also be a guide on this point.

It must not be assumed that after the objection is rejected, the ordinary chain of appeal and cassation is automatically opened. Extraordinary remedies and constitutional applications are assessed separately if their conditions exist. A reversal in the interest of the law is not an ordinary appeal that a person can initiate directly to the Court of Cassation by petition. Further, being subject to objection is not the same as being final at the moment the decision is given. [1, 5, 7]

Finality, for the purposes of the enforcement of a conviction, is observed under Article 4 of Law No. 5275. By contrast, there is no general rule that the enforcement of every decision subject to objection will automatically be suspended; the request for suspension and, where necessary, the request for deferment under Article 269 CMK are separately assessed. The enforcement of a conviction must therefore be separated from the continuation of another protective measure in the file.

How Does a Serial Trial Decision Affect the Criminal Record and Other Procedures?

A conviction given at the end of the serial procedure may have consequences for the criminal record legislation once it becomes final. The brevity of the sentence, its conversion into a judicial fine or its deferral does not automatically achieve the result that it "never appears on the record." HAGB decisions have their own recording system, which is not the same as a conviction record.

The fact that a record does not appear in a criminal record certificate does not show that all the legal effects of that decision have been erased. In assessing archiving, enforcement, the announcement of the judgment or recidivism, the nature of the relevant decision and the records is separately examined. For the deletion of a record, the type of sentence, enforcement and statutory conditions are decisive. [1, 8]

There is no single consequence for public service entry, professional or licensing procedures and visa applications in foreign countries. The applicable special regulation and the scope of the information requested are important. The fact that HAGB exists under Turkish law does not mean that a negative answer may be given on every application form abroad. No definitive guidance should be given without seeing the concrete form and the rules of the relevant country.

Does Accepting the Serial Procedure Amount to Admitting the Offence?

The acceptance provided for in Article 250(3) CMK relates to the application of the special method of procedure. The law does not contain, in addition, an acceptance requirement that makes an express admission of the offence compulsory in every case. The statements written in the acceptance minutes must be examined separately; the choice of procedure, the account of the material facts and the legal nature of the offence must be kept distinct.

A suspect may prefer this method in order to obtain a result more quickly or because of the possibility of a lower sanction. For this reason, it is wrong to conclude from the acceptance signature alone that the suspect unquestionably confessed all the facts in the file. By contrast, the explanation "I accepted the procedure but I did not accept the offence" does not automatically invalidate a conviction given later and become final. The court's duty to assess the evidence gains importance at this point.

The studies of Enver Kaşlı draw attention to the difference between acceptance and admission. The view advanced in his assessment dated October 13, 2026, that an express admission of the offence should be required for recidivism, constitutes criticism and a suggestion directed at the regulation and its application, not a restatement of the existing case law. That view should not be presented as an express condition already contained in the law, or as a rule adopted in all decisions of the Court of Cassation. [9]

Can a Conviction Obtained Through the Serial Procedure Be Used as a Basis for Recidivism?

What Does the 2026 Decision of the 1st Criminal Chamber of the Court of Cassation Say?

In its decision of March 12, 2026, E.2026/2, K.2026/1967, the 1st Criminal Chamber of the Court of Cassation (Yargıtay 1. Ceza Dairesi) addressed a divergence of views between the criminal chambers of the Ankara and İzmir regional courts of appeal. The dispute concerned whether a conviction established through the serial procedure could serve as the basis for recidivism in a subsequent file. [7]

The Chamber considered the guarantee of defence counsel, the court's hearing of the suspect, the judgment based on evidence and the availability of the objection route. Taking into account that Article 250(7) CMK does not exclude security measures, it resolved the divergence by holding that convictions given under the serial procedure may be used as the basis for recidivism. The decision was given unanimously.

The conclusion to be drawn from this is not that all serial procedure decisions constitute recidivism without any further condition. The nature of the decision, its finality, the date of the subsequent offence and the other conditions of Article 58 TCK must also be present. A conviction announced with HAGB, and a judicial fine imposed directly, must not be confused with a judicial fine converted from a prison sentence.

How Should the Decision of the Criminal General Assembly of July 1, 2026 Be Assessed?

In the published account of the decision, it appears that the decision of the Criminal General Assembly of the Court of Cassation (Yargıtay Ceza Genel Kurulu) of July 1, 2026, E.2026/6-122, K.2026/444, is also to the effect that a conviction under the serial trial procedure may be used as the basis for recidivism. The important point in the account is that the earlier conviction for traffic safety had a fine that was converted from a prison sentence. The operative part states that the objection of the Chief Public Prosecutor's Office of the Court of Cassation was accepted and the contrary decision of the chamber was set aside. [10]

Source limit: The internet account of this decision that was accessible does not contain all parts of it; a complete official or verified full text could not be obtained. Accordingly, not all facts in the decision, the details of the dissenting opinions or the entire reasoning are used as though they had been verified. The detailed case law analysis above is based on the 1st Criminal Chamber decision whose full text was read.

What Are the Other Conditions of Recidivism?

Under Article 58 TCK, the earlier conviction must become final before the new offence is committed. Complete execution of the earlier sentence is not a necessary condition for recidivism to arise. Confusing these two conditions leads to wrong calculations in practice.

The law also provides that recidivism does not apply where specified periods have passed after the execution of the earlier sentence. Where the earlier sentence was imprisonment of more than five years, a five-year period applies; where it was imprisonment of five years or less, or a judicial fine, a three-year period applies. The period is assessed from the date of execution, not automatically from the date of the judgment.

Recidivism does not arise between intentional and negligent offences. Judgments given for offences committed by persons who had not reached the age of eighteen at the time of the act also do not form a basis for recidivism. Foreign court judgments are assessed separately within the exceptions for the offences in the law. The prohibition of recidivism in Article 272(3) CMK and the openness of the judgment to legal remedies must also be examined. [8]

Recidivism does not mean "re-adding the earlier penalty." It may be effective in choosing the sanction for the subsequent offence and in the regime of enforcement. Whether recidivism can be applied in the new file and whether the earlier serial conviction may be relied upon as the basis of recidivism are two separate examinations. Further, a fixed prison term cannot be imposed for a second recidivism and conditional release without considering the current enforcement provisions.

Which Points Are Important from the Standpoint of the Opposing View and of the Defence?

The critical approach holds that the serial procedure and the general trial, with its debate on evidence and its legal remedy guarantees, are not the same; and that the fact that acceptance is not treated as an express admission of the offence raises problems in relation to the subsequent serious consequences. The assessment of Ersan Şen, Beyza Başer Berkün and Mustafa Akarsu dated October 13, 2026 focuses in particular on the scope of review and on predictability. [11]

By contrast, the basis of the Court of Cassation decision examined is the existence of a conviction pronounced by the court, the mandatory guarantee of defence counsel and the ordinary objection route. Accordingly, confining the defence to the claim that "the serial procedure never constitutes recidivism" overlooks the current prevailing case law to the detriment of the accused.

In a concrete defence, the original of the earlier judgment, the endorsement of finality, the notification records, the enforcement information, the date of the new offence and the status of HAGB must be examined together. If the view that there is no express admission is to be argued, it must be explained that this is a legal argument criticizing the currently prevailing approach; independent objections, such as the earlier judgment not having become final or the time conditions not being met, must also be separately assessed.

Which Documents Should Be Examined Before Accepting the Proposal?

A sound assessment is based on examining the file before any abstract sentence reduction. In the meeting with defence counsel, the following documents and questions should be considered together:

• Allegation and evidence: Date of the act, statutory provision, incident records, images or reports; evidence in favour and the elements of the offence.
• Summons and information: Method of reaching the person, content of the notice, need for an interpreter and a request for time to consider.
• Proposal and calculation: Reasons for the basic penalty, the application of continuing offence provisions if any, the half reduction and the type of sanction.
• Personal legal position: Earlier judgments, HAGB decisions, finality and enforcement records; current supervision periods.
• Acceptance document: The procedure and sanction accepted must be clear; added statements must reflect the real will.
• Court decision: Conformity with the request, hearing minutes, reasoning, remedy and notification information.

Two possibilities must be discussed together in the legal assessment: under the general procedure there may be a possibility of acquittal or of a more favourable decision; the serial procedure may provide a statutory sentence reduction. The choice must not be made without seeing the file, by a rule of "always accept" or "never accept." The effect of acceptance on future criminal record and recidivism must be explained as concretely as the short-term reduction. For the process and documents, the article on defence strategies in criminal cases may also be consulted.

On the financial side, the judicial fine, the costs of the proceedings and lawyer's fees are separate items. The half reduction in the penalty does not mean that all costs are reduced by half. A distinction must be drawn between appointment by the bar and a fee agreement with a lawyer chosen by the person; costs must be examined under the relevant part of the decision and Article 324 CMK et seq. Total cost may not be promised without seeing the concrete tariff and agreement.

Conclusion

The serial trial procedure is a special procedure, based on the conscious acceptance of the suspect and on judicial supervision, which provides a reduced sanction for certain offences. Acceptance in the presence of defence counsel, the need for an interpreter, the assessment of the evidence, withdrawal before judgment and objection against the judgment are the essential guarantees of this process.

Acceptance and admission of guilt must be kept distinct; but that distinction does not remove all consequences of a final conviction. The current Court of Cassation decision examined accepts that, where the other statutory conditions are met, a conviction under the serial trial procedure may be used as the basis for recidivism. Accordingly, assessing the proposal must be based not only on the halving of the sentence but also on the earlier records, the probable type of decision and its subsequent legal effects.

Güneş & Güneş Law Firm, which has been conducting work since 1999, handles criminal investigations and remedy processes by assessing the documents of the concrete file together with current case law. Information on the field of practice is available from the criminal law services page. This article is general legal information; a recommendation to accept or to object in a particular file requires examination of the relevant documents.

Related articles: Deferment of the pronouncement of judgment (HAGB); Recidivism and the enforcement regime specific to repeat offenders; Deletion of the criminal record and archive entry.

Frequently Asked Questions

Am I obliged to accept a serial trial procedure proposal?

No. The procedure depends on your free acceptance in the presence of defence counsel. If it is rejected, the file is concluded under the general provisions. The consequences of rejection and withdrawal are explained in the section Can the proposal be rejected and acceptance withdrawn?.

Can I request time to consider the proposal?

Yes. At your request, a reasonable period of consideration not exceeding one month is granted. This period is not automatically one month. See the section Assessment of the proposal.

Can I accept the serial procedure without a lawyer?

A valid acceptance must be made in the presence of defence counsel. If you have no lawyer of your choice, defence counsel is appointed; defence counsel must also be present when you are heard by the court. The distinction is explained in the section Defence counsel and interpreter.

Can I withdraw after signing?

You may withdraw from the acceptance until the court pronounces judgment. After judgment, the conditions of the legal remedy are assessed. Withdrawal and objection are different stages.

In the serial procedure, is the sentence always converted into a judicial fine?

No. A half reduction and conversion into an alternative sanction are different operations. The conditions of Article 50 TCK are separately examined. The matter is explained in the section Sentence reduction, HAGB and deferral.

Can the court impose a heavier sentence than the prosecutor's proposal?

Under Article 250(9) CMK, a judgment more severe than the sanction in the request may not be imposed. The court carries out its statutory review; depending on the circumstances, a lighter sanction or rejection of the request may arise. See the section Court review.

How many days is the period for objecting to a serial trial decision?

The current general period is two weeks. The starting point is determined by the lawful notification of the decision; transitional provisions are examined for older files. The details are set out in the section Period and competent authority.

Does accepting the serial procedure mean I have confessed to the offence?

Accepting the application of the procedure is not the same as admitting the material facts. Nevertheless, a final conviction may have legal consequences. The distinction between acceptance and admission should be assessed together with the section Acceptance and admission.

Does a sentence I receive through the serial procedure create recidivism for a later offence?

It may. The Court of Cassation decision examined accepts this possibility; the nature of the earlier decision, its finality before the new offence and the other conditions are separately required. The current view and criticisms are explained in the section Recidivism.

Does the serial procedure never apply any more to a person who cannot be reached by telephone?

No such general conclusion can be drawn. The annulment of the phrase "unreachable for any other reason" entered into force on September 3, 2026. Summons procedures and remaining statutory obstacles are separately examined. See the section Constitutional Court decisions.

Sources and legal bases

1. Law No. 5271, Code of Criminal Procedure (Ceza Muhakemesi Kanunu); in particular Arts. 35, 39–42, 150, 153–154, 160, 170–174, 202, 223, 231, 250–252, 260–272, 309 and 324 and following. Ministry of Justice text. The text has been assessed together with the effective dates of the Constitutional Court decisions below and with subsequent legislative amendments. Constitutional bases: Constitution Arts. 2, 10, 36, 38 and 138.
2. Regulation on the Serial Trial Procedure in Criminal Procedure (Ceza Muhakemesinde Seri Muhakeme Yönetmeliği); Official Gazette December 31, 2019, No. 30995, 4th repeated issue; in particular Arts. 5, 8–15. Official Gazette. The former Regulation's description has not been used as the current rule where it conflicts with subsequent statutory provisions and Constitutional Court annulments.
3. Constitutional Court, November 5, 2024, E.2024/66, K.2024/188; Official Gazette March 10, 2025, No. 32837; in particular §§28–47 and operative part. Text of the decision.
4. Constitutional Court, September 10, 2025, E.2025/51, K.2025/184; Official Gazette December 3, 2025, No. 33096; in particular §§29–36 and operative part; annulment effective September 3, 2026. Text of the decision.
5. Law No. 7589 Amending Certain Laws for the Effective and Efficient Functioning of Justice, Arts. 15 and 26; accepted July 16, 2026; Official Gazette July 31, 2026, No. 33326. Text as accepted by the Grand National Assembly.
6. Constitutional Court, March 31, 2021, E.2020/35, K.2021/26; Official Gazette June 15, 2021, No. 31512; in particular §§37–59, operative part and dissenting opinion. Text of the decision.
7. 1st Criminal Chamber of the Court of Cassation (Yargıtay 1. Ceza Dairesi), March 12, 2026, E.2026/2, K.2026/1967; resolution of the divergence; reasoning and section IV of the operative part. Text of the decision.
8. Law No. 5237, Turkish Penal Code (TCK); in particular Arts. 7, 31–33, 50–53, 58 and 61; Law No. 5352, Judicial Records Law (Adli Sicil Kanunu), Arts. 4, 9 and 12; Law No. 5275, Art. 4 and 108. TCK official legislation record, Judicial Records Law, Execution Law.
9. Enver Kaşlı, "The Relationship Between Acceptance of the Serial Trial Procedure Proposal and Admission of Guilt" (Seri Muhakeme Usulü Teklifini Kabul Etme ve Suç İkrarı İlişkisi), Journal of the Turkish Justice Academy (Türkiye Adalet Akademisi Dergisi), 2022, No. 50, pp. 79–92, DOI:10.54049/taad.1093107. Article. Also the author's assessment of October 13, 2026 on a conviction under the serial procedure, express admission of the offence and recidivism, published by Hukuki Haber: assessment.
10. Criminal General Assembly of the Court of Cassation (Yargıtay Ceza Genel Kurulu), July 1, 2026, E.2026/6-122, K.2026/444. Published sections of the decision. The internet account accessed is not the complete full text; this limitation is explained in the relevant section.
11. Ersan Şen, Beyza Başer Berkün and Mustafa Akarsu, "The Problem of Basing Recidivism on Decisions Given under the Serial Trial Procedure" (Seri Muhakeme Usulü ile Verilen Kararların Tekerrüre Esas Alınması Sorunu), October 13, 2026. Assessment. The authors' views are not presented as a court decision.
12. 8th Criminal Chamber of the Court of Cassation (Yargıtay 8. Ceza Dairesi), October 2, 2024, E.2023/1793, K.2024/7299; discretionary reduction, reasoning II and operative part III. Text of the decision.

Date of source control: October 13, 2026. Links on the decision provider may require access or membership.