Pre-trial detention is one of the most severe protective measures in criminal proceedings, as it directly restricts an individual’s liberty. For this reason, the mere existence of a criminal accusation is not, by itself, sufficient to justify a detention order in practice. Pursuant to the Criminal Procedure Code No. 5271, a detention order may be issued only where there is concrete evidence indicating strong suspicion of guilt, at least one legal ground for detention exists, and judicial control measures are shown to be insufficient. In particular, Articles 100 and 101 of the Criminal Procedure Code clearly establish that detention is an exceptional measure and may not be imposed on the basis of arbitrary, abstract, or inadequate reasoning.
That said, in practice, a detention order often signifies not only a legal issue for the suspect, the accused, and their relatives, but also a serious psychological and social crisis. At this stage, it is of great importance to know what rights are available, not to miss the deadline for objecting to the detention order, to assess the file on the basis of concrete evidence, and to establish an effective defence strategy. Not every detention order is lawful. In some cases, detention orders may be issued even though the statutory conditions have not been satisfied; in others, a more severe measure may be preferred although judicial control would have been sufficient. In this article, we address in detail, within a legal framework, issues ranging from the question of what detention is, to the conditions for detention, the grounds on which a detention order may be issued, objections to detention orders, petitions of objection to detention, the duration of detention, and compensation in cases of prolonged detention.
What Is Pre-Trial Detention?
Pre-trial detention is one of the most severe protective measures applied in criminal proceedings and directly restricts personal liberty. Under Article 19 of the Constitution, no one may be deprived of liberty except in the manner and under the conditions prescribed by law; accordingly, detention may only be imposed where it has a clear legal basis and is subject to judicial review. Within the same constitutional framework, detention is not an arbitrary intervention, but rather an exceptional measure that may be resorted to only if specific conditions are met.
From the perspective of the Criminal Procedure Code, detention is not a punishment. This distinction is extremely important. Although many people in practice perceive a detention order as if it were a conviction, legally speaking, detention is merely a temporary protective measure used to ensure the proper conduct of the investigation or prosecution. In other words, before a final judgment has been rendered, an individual’s liberty may be temporarily restricted only where there is a risk of absconding, a possibility of tampering with evidence, or the existence of other statutory conditions. For this reason, the purpose of detention is not to punish, but to safeguard the proper administration of criminal proceedings. In the systematic structure of the Criminal Procedure Code, detention is regulated under the heading of “protective measures.”
Detention is an exceptional judicial measure that may be imposed only where there is concrete evidence indicating strong suspicion of guilt and, in addition, at least one legal ground for detention. Indeed, the Constitutional Court has also emphasized that the prerequisite for detention is the existence of a strong indication of the person’s guilt, and that this must be supported by convincing evidence. In other words, mere abstract allegations, assumptions, impressions, or general suspicion are not sufficient to justify a detention order. Particularly given that the presumption of innocence applies in criminal proceedings, detention can never be used as a form of anticipatory punishment.
Pursuant to Article 101 of the Criminal Procedure Code, during the investigation stage, a detention order is issued by the Criminal Judgeship of Peace upon the request of the public prosecutor; during the prosecution stage, it is issued by the court. Moreover, it is not sufficient merely to state the outcome as “detention.” The decision must set out, with reference to concrete facts, the evidence establishing strong suspicion of guilt, the grounds for detention, the proportionality of the measure, and the reasons why judicial control would be inadequate. In practice, there are cases in which detention orders are issued using standard formulaic language, without properly observing Article 101/1 of the Criminal Procedure Code. In such situations, it may become necessary to be fully aware of one’s rights, to prepare an objection petition that can effectively impact the case file within the legal framework, and, where appropriate, to meet directly with the authority that issued the detention order. The law also requires that the content of the decision be communicated orally to the suspect or accused and that a written copy be provided to them. This demonstrates that the detention process is not merely formal, but is subject to a procedure containing serious safeguards.
Another point that must be particularly emphasized here is that detention is a measure of last resort. If the same objective in criminal proceedings can be achieved by means of a less restrictive measure—for example, if judicial control would suffice—then detention should not be imposed directly. Indeed, the current wording of the law makes it mandatory for the detention order to explain why judicial control would be inadequate. In this respect, detention is not an automatic measure to be resorted to; it is a measure that can only be regarded as lawful to the extent that it is necessary, proportionate, and reasoned. Accordingly, the answer to the question “what is detention?” is not limited to a technical definition alone. It must also be stressed that detention is a judicial instrument subject to very strict statutory conditions because it constitutes one of the gravest interferences with the right to liberty and security of person.
On What Grounds May a Detention Order Be Issued?
A detention order is not a measure that may be applied automatically in criminal proceedings. Under Article 100 of the Criminal Procedure Code No. 5271, in order for a detention order to be issued, there must first be concrete evidence establishing strong suspicion of guilt, and there must also be at least one legal ground for detention. The law goes further and explicitly provides that no detention order may be issued where the measure would be disproportionate in light of the importance of the case and the expected sentence or security measure. Therefore, a legally valid detention order rests on three fundamental axes: strong suspicion of guilt based on concrete evidence, a statutory ground for detention, and proportionality.
The first and indispensable requirement is strong suspicion of guilt. What is meant here is not merely a general impression, a police assessment, or an abstract allegation. The law expressly requires “concrete evidence.” By way of example, in a narcotics case, this may include intercepted communications that indicate conduct falling within Article 188 of the Turkish Penal Code; or, in an intentional injury case, a video recording showing that the assault took place in the manner alleged. The Constitutional Court has also emphasized that the precondition for a legitimate purpose in detention is the existence of a strong indication of guilt, supported by convincing evidence. In this respect, abstract assessments such as “there is an investigation against the person” or “the accusation appears serious” are not sufficient on their own to justify detention. No matter how compelling the alleged grounds for detention may appear, the case file must first contain concrete material establishing strong suspicion of guilt.
The second element is the existence of a ground for detention. Under Article 100/2 of the Criminal Procedure Code, these grounds fall into two principal categories. The first is the existence of concrete facts indicating that the suspect or accused has absconded, gone into hiding, or may attempt to abscond. The second is the existence of strong suspicion, based on the conduct of the suspect or accused, that they may destroy, conceal, or alter evidence, or attempt to exert pressure on witnesses, victims, or other persons. What is important here is that the law once again requires “concrete facts” and “strong suspicion.” Therefore, abstract assumptions such as “the person may flee” or “may tamper with evidence” are not sufficient; these risks must be inferable from the case file itself. Nevertheless, in practice, detention orders are sometimes issued on the basis of speculation that the suspect or accused might flee or influence persons connected to the case, even where no concrete evidence exists. In such situations, as noted above, a strong objection petition capable of affecting the case file should be prepared, and, where necessary, the competent authority should be approached directly so that the specific circumstances of the case can be explained.
In addition, the law separately regulates so-called catalogue offences. Under Article 100/3 of the Criminal Procedure Code, where there is strong suspicion based on concrete evidence that certain offences have been committed, the existence of a ground for detention may be presumed. These offences include genocide and crimes against humanity, migrant smuggling and human trafficking, intentional killing, certain aggravated forms of intentional injury, torture, sexual assault, sexual abuse of children, theft and robbery, the manufacture and trafficking of narcotic or psychotropic substances, establishing an organization for the purpose of committing crimes, crimes against state security, crimes against the constitutional order, arms smuggling, certain smuggling offences, intentionally setting forests on fire, certain offences under the law on meetings and demonstrations, and certain offences under anti-terror legislation. In addition, in recent years, certain intentional injury offences committed against women, as well as some intentional injury offences committed against healthcare personnel and, following the 2024 amendment, certain educational personnel by reason of their duties, have also been added to this scope. However, the critical point remains unchanged: the existence of a catalogue offence does not eliminate the requirement of concrete evidence. The law expressly continues to require “strong suspicion based on concrete evidence” in this area as well.
The third element—and one that is often the most neglected in practice—is the principle of proportionality. Since detention is the most severe protective measure restricting personal liberty, if the same aim can be achieved by a lighter measure, that route should be preferred. Indeed, the precedent decisions of the Constitutional Court also emphasize that detention must be proportionate in view of the gravity of the alleged offence and the severity of the likely sanction. Articles 101/1 and 101/2 of the Criminal Procedure Code likewise require that both the request for detention and the detention order must set out, with legal and factual reasoning, not only the suspicion of guilt and the grounds for detention, but also why judicial control would be inadequate. Accordingly, the simplistic logic of “the offence is serious, therefore detention must follow” is not legally sufficient; it must be specifically demonstrated why judicial control would not suffice and why detention is necessary.
Another important point under Article 101 of the Criminal Procedure Code is that the competent authority and the obligation to provide reasoning are clearly defined. During the investigation stage, a detention order is issued by the Criminal Judgeship of Peace upon the request of the public prosecutor; during the prosecution stage, it may be issued by the court either upon the request of the public prosecutor or ex officio. However, in both situations, the request and the decision must include proper reasoning. The law mandates that decisions concerning detention, the continuation of detention, or the rejection of a release request must clearly set out, with reference to concrete facts, the evidence showing strong suspicion of guilt, the existence of grounds for detention, the proportionality of detention, and the inadequacy of judicial control. This demonstrates that the lawfulness of a detention order depends not only on its operative part, but also on the quality of its reasoning.
Finally, the law prohibits detention outright in certain circumstances. Under Article 100/4 of the Criminal Procedure Code, detention may not be ordered for offences punishable only by a judicial fine, or—except for intentional offences against bodily integrity—for offences carrying a maximum prison sentence of two years or less. This provision is one of the clearest statutory limitations demonstrating that detention is truly an exceptional measure. Therefore, when assessing whether the conditions for detention are met in a given case, one must look not only at the criminal accusation itself, but also at whether the offence is a catalogue offence, the upper statutory limit of the sentence, the risk of absconding or tampering with evidence, proportionality, and whether judicial control would be sufficient. In short, a detention order may be issued only where all statutory conditions are met cumulatively; if even one of them is missing, the law should favour trial without detention or the application of judicial control.
What Should a Detained Person Do?
The first thing a person who has been detained—or who is facing the risk of detention—should do is to manage the process not with panic, but with a rights-based approach. This is because the first hours in criminal proceedings are often decisive for the course of the case. Under Article 19 of the Constitution, a person who has been apprehended or detained must be informed immediately of the reasons for the apprehension or detention and of the allegations against them. Article 101 of the Criminal Procedure Code also requires that the detention order be reasoned and that it include concrete facts demonstrating strong suspicion of guilt, the grounds for detention, proportionality, and why judicial control is insufficient. Accordingly, the person concerned and their relatives should first obtain a clear answer, based on the case file, to the question of “why was a detention order issued?” and should not be content with abstract or formulaic reasoning.
The second—and most critical—step is to contact a criminal law attorney without delay. Under Article 147 of the Criminal Procedure Code, the suspect must be informed of their right to choose defence counsel and of the right of the lawyer to be present during statement-taking and questioning. Pursuant to Article 149, the suspect or accused may benefit from the assistance of one or more defence counsel at every stage of the investigation and prosecution; the lawyer’s right to meet with the person, to be present during statement-taking or questioning, and to provide legal assistance may not be obstructed. For this reason, it may lead to serious loss of rights if the detained person adopts the approach of “let me first see what happens, and the lawyer can handle it later.” In criminal proceedings, cases often begin with the statement stage—and, in many respects, are shaped by it.
Another fundamental issue to which a detained person must pay attention is discipline during statement-taking and questioning. Article 147 of the Criminal Procedure Code requires that the person be informed of the offence imputed to them, that the right to remain silent be communicated, and that they be given the opportunity to request the collection of evidence in their favour. Accordingly, the person should not make haphazard statements before fully understanding the accusation, seeing the evidence in the file, and especially speaking with their lawyer. Questions relating to identity should be answered accurately; however, a defence relating to the accusation should not be given before the file and strategy have been properly assessed. In practice, in many case files, inconsistent or disorganized statements made at the outset later become grounds for detention or are interpreted adversely. By contrast, the person should specifically request the collection of exculpatory evidence such as security camera footage, message content, witness testimony, location data, call records, or other concrete evidence. The question of which evidence to rely upon and how to respond to incriminating material should also be handled with the assistance of an attorney experienced in criminal law.
Informing relatives during the apprehension or custody process is also an important safeguard. Article 19 of the Constitution provides that the person’s relatives must be informed immediately of the apprehension or detention. Likewise, Article 95 of the Criminal Procedure Code stipulates that when a suspect or accused is apprehended, taken into custody, or when the custody period is extended, one of their relatives or a person designated by them must be informed without delay by order of the public prosecutor. For this reason, the family or close circle of the detained person should quickly ascertain which prosecutor’s office and which Criminal Judgeship of Peace is handling the file, act in coordination with the lawyer, and ensure, in particular, that a reasoned copy of the detention order is obtained. The ability of relatives to organize themselves quickly and correctly is also of serious importance for any subsequent objection to the detention order.
Another important issue is the defence counsel’s right to examine the file and obtain copies. Under Article 153 of the Criminal Procedure Code, defence counsel may examine the contents of the investigation file and, upon request, obtain copies of documents free of charge. Although this right may, in some serious offences and where there is a risk of jeopardizing the purpose of the investigation, be restricted by judicial decision, the law clearly states that such restriction cannot apply to records containing the statement of the apprehended person or suspect, expert reports, or records relating to procedural acts at which defence counsel has the right to be present. Therefore, one of the most concrete answers to the question “what should a detained person do?” is this: the person’s lawyer must swiftly examine the existing evidence, the grounds for detention, and any inconsistencies in the file, and then formulate a strategy seeking release or judicial control.
The detained person’s right to meet with their lawyer confidentially and freely is also separately protected. Under Article 154 of the Criminal Procedure Code, the suspect or accused may meet with defence counsel at any time, without the need for a power of attorney, in a setting where others cannot overhear the conversation; their correspondence with counsel may not be subjected to supervision. The law provides only that, for certain serious offences, the detained suspect’s right to meet with counsel may be restricted by judicial decision for up to twenty-four hours, but no statement may be taken during that period. Within this framework, the person should not view the meeting with counsel as a mere formality; they should share in detail the chronology of events, exculpatory evidence, and any procedural irregularities concerning search, seizure, communication surveillance, or identification procedures. In many cases, what strengthens the prospect of release is not the abstract declaration “I am innocent,” but rather technical and concrete data that can be presented to the file and that weaken the legal conditions for detention.
Finally, the person and their relatives should not fall into the trap of passive waiting. Article 19 of the Constitution guarantees that an apprehended person must be brought before a judge within no more than forty-eight hours, and within no more than four days in cases involving collective offences; Article 91 of the Criminal Procedure Code similarly limits the duration of custody. If a detention order has been issued, the next step is to assess promptly, in light of the nature of the file, the options of requesting release, judicial control, or objecting to the detention order. At this stage, every file must be assessed according to its own evidentiary structure; in some cases, an established lifestyle may refute the allegation of flight risk; in others, the fact that technical records have already been collected may weaken the allegation of tampering with evidence; and in still others, even if the accusation concerns a catalogue offence, the lack of sufficient concrete evidence may be decisive. For this reason, establishing a planned and technically sound defence from the very outset is the most important element of the detention process. As Bektaş Law Office, we must underline that, particularly in criminal investigations, it is vital to address together the stages of the initial statement, questioning, detention, and objection.
Objection to Detention
An objection to detention is the most important ordinary legal remedy against this severe protective measure, which restricts personal liberty in criminal proceedings. Under the Criminal Procedure Code No. 5271, objections may be filed against judicial decisions and, in the cases specified by law, against court decisions as well; detention orders are expressly subject to objection within this framework. Indeed, Article 101/5 of the Criminal Procedure Code expressly provides that decisions rendered under Articles 100 and 101 may be challenged by way of objection. In addition, under Article 104, the suspect or accused may request release at every stage of the investigation and prosecution; decisions regarding the continuation of detention or the rejection of a release request may likewise be challenged by objection.
What must be particularly understood here is that an objection to detention is not merely a formal application. An effective objection must directly target the legal basis on which the detention order rests. This is because, under Article 101/2 of the Criminal Procedure Code, decisions concerning detention, the continuation of detention, or the rejection of a release request must be reasoned with reference to concrete facts showing strong suspicion of guilt, the existence of grounds for detention, the proportionality of detention, and why judicial control is insufficient. Therefore, when preparing an objection to a detention order, grounds such as “there is no strong suspicion of guilt,” “the risk of absconding or tampering with evidence has not been concretely established,” “judicial control would be sufficient,” and “the decision is based on formulaic reasoning” should be developed carefully in legal language and supported by concrete elements from the case file.
The current regulation concerning the time limit for objection is particularly important. Under Article 268/1 of the Criminal Procedure Code, unless another time limit is specifically prescribed by law, an objection must be filed within two weeks from the date on which the interested party learned of the decision. The same provision also expressly reflects that, by means of Law No. 7499 dated 2 March 2024, the previous phrase “seven days” was amended to “two weeks.” The objection may be filed through a petition submitted to the authority that rendered the decision, or by making a statement to the court clerk provided that it is recorded in the minutes. A suspect or accused who is in detention may also, pursuant to Article 263 of the Criminal Procedure Code, lodge the legal remedy by making a statement to, or submitting a petition through, the director of the penal institution or detention facility; in such case, the time limit is deemed to have been interrupted at the moment that step is taken.
The authority that will examine the objection also varies depending on who issued the decision. Under Article 268/2 of the Criminal Procedure Code, if the judge or court that issued the decision considers the objection well-founded, it may correct its own decision; if it does not, it must send the file to the reviewing authority within no more than three days. The competent reviewing authorities are regulated in detail under Article 268/3. According to the current text, objections against detention and judicial control decisions of the Criminal Judgeship of Peace are, as a rule, examined by the judge of the criminal court of first instance within the same judicial district. Objections against decisions rendered by the judge of the criminal court of first instance are examined by the assize court within the same judicial district. Therefore, in practice, the answer to the question “where should the objection be filed?” must be determined technically in accordance with the authority handling the file.
Filing an objection to detention does not, by itself, suspend the execution of the detention order. Under Article 269 of the Criminal Procedure Code, an objection does not result in a stay of execution; however, the authority whose decision is challenged, or the authority examining the objection, may decide to suspend execution. Nevertheless, during the examination of the objection, the court or judge should not simply review the file and automatically issue a rejection. Article 270 of the Criminal Procedure Code provides that the reviewing authority may, where necessary, conduct an examination and investigation and may obtain the opinion of the public prosecutor. More importantly, if the public prosecutor’s opinion is obtained in objections filed under Articles 101 and 105, that opinion must be communicated to the suspect, the accused, or their defence counsel, and the relevant party may respond within three days. This regulation is intended to ensure that the defence is genuinely heard in the objection process and that the principle of adversarial proceedings is preserved.
The procedure for the examination of the objection is also important. Under Article 271 of the Criminal Procedure Code, as a rule, objections are decided without a hearing; however, where deemed necessary, the public prosecutor and then the defence counsel or legal representative may be heard. If the objection is found well-founded, the reviewing authority does not merely quash the earlier decision, but also renders a decision on the subject matter of the objection itself. In practice, this means that the reviewing authority may directly order release or impose judicial control. The law also requires that the decision be delivered as swiftly as possible. That said, decisions rendered by the reviewing authority on objection are, as a rule, final; however, where a detention order is issued for the first time by the reviewing authority, a further objection may be filed against that first-time detention decision. This point is particularly important where the first-instance authority rejected detention but the upper reviewing authority subsequently orders detention for the first time.
The case law of the Constitutional Court also demonstrates that objection to detention is not merely a theoretical remedy. The Court has assessed, within the scope of the right to liberty and security of person, issues such as detention continuation decisions based on formulaic reasoning, objections examined without hearings and in a manner weakening the effective participation of the defence, and the requirement to communicate the prosecutor’s opinion. In Firas Aslan and Hebat Aslan, the applicants’ complaints that the decisions continuing their detention were based on stereotyped reasoning and that the prosecutor’s opinion had not been communicated to them during the objection examination were treated as serious constitutional allegations. In the more recent Hüsame Emre decision, the allegation that the prosecutor’s opinion obtained during the examination of the objection to detention had not been communicated was also separately assessed. These precedents show that, when preparing an objection to a detention order, it is not sufficient simply to say “we request release”; the reasoning must be concrete, must engage with the case file, and must emphasize the right of defence.
In practice, a strong objection petition against a detention order should be built on four principal pillars: demonstrating that the file does not contain concrete evidence supporting strong suspicion of guilt, showing that the grounds for detention remain abstract, explaining why judicial control would be sufficient, and pointing out that the reasoning of the decision does not meet the standard required by Article 101 of the Criminal Procedure Code. In addition, concrete factors such as a fixed residence, family ties, steady employment, willingness to surrender, the fact that the evidence has largely already been collected, and the absence of any likelihood of pressure being exerted on witnesses should also be emphasized. In other words, an objection to detention is not merely a procedural right; when used properly, it is an extremely important defence tool capable of securing the termination of detention or its conversion into judicial control.
Petition of Objection to a Detention Order
A petition objecting to detention is not merely a procedural filing; it is a technical defence document that directly challenges the unlawfulness of a protective measure restricting personal liberty. Under the Criminal Procedure Code, decisions regarding detention, the continuation of detention, or the rejection of a release request must be reasoned with concrete facts demonstrating strong suspicion of guilt, the grounds for detention, the proportionality of the measure, and why judicial control is inadequate. Therefore, an effective petition of objection to a detention order must target precisely these four axes: whether the file truly contains strong suspicion of guilt, whether the risk of absconding or tampering with evidence is concrete, whether detention is proportionate, and why judicial control should be considered sufficient.
The law adopts a relatively flexible system as to the form of the objection. Under Article 268 of the Criminal Procedure Code, an objection may be filed within two weeks from the date on which the interested party learned of the decision, either through a petition submitted to the authority that issued the decision or by making a statement to the court clerk provided that it is entered into the minutes. A suspect or accused who is under detention may also lodge the legal remedy by making a statement to the court clerk or to the director of the penal institution or detention facility in which they are held, or by submitting a petition through that authority. At the moment such a submission is made to the institution director or court clerk, the time limit for the legal remedy is deemed to have been interrupted. For this reason, although the technical quality of the petition is very important, the first priority is to ensure that the deadline is not missed.
That said, in practice, a strong objection petition should not be limited to the sentence “we request release.” The petition should first clearly identify the date and number of the challenged decision, the offence in relation to which the detention order was issued, and the fact that the application is being made pursuant to Articles 101/5 and 268 of the Criminal Procedure Code. Thereafter, the evidence contained in the file should be evaluated one by one, and it should be explained why strong suspicion of guilt does not exist—or, at the very least, why it does not exist at a level sufficient to justify detention. If the file contains only abstract statements, contradictory accounts, technical data that has not yet been verified, or elements that do not appear capable on their own of supporting a conviction, each of these points should be set out separately. This is because the law requires reasoning at the level of “concrete facts” in a detention order; accordingly, the objection petition must also concretely show that the decision fails to meet this standard.
The second main pillar of the objection petition is to demonstrate that the grounds for detention do not exist. When Articles 101 and 104 of the Criminal Procedure Code are read together, it is clear that the detained suspect or accused may request release at any stage and that decisions on such requests may be challenged. Within this framework, the petition should particularly emphasize factors such as the suspect’s or accused’s fixed residence, regular employment, family and social ties, willingness to appear when summoned, the absence of any concrete indication that they intend to abscond, and the fact that the evidence has already largely been collected. If witnesses have already been heard, security camera recordings obtained, digital materials examined, or search and seizure procedures completed, the allegation of “tampering with evidence” should be expressly stated to have weakened. An objection petition must speak not in terms of abstract possibilities, but on the basis of the actual state of the file.
The third important element is the use of alternative requests. A well-prepared petition objecting to a detention order does not limit itself to requesting release; it also requests, in the alternative, the application of judicial control measures if the court reaches a different conclusion. This is because Articles 101/1 and 101/2 of the Criminal Procedure Code require that, when detention is requested and when a detention order is issued, the reasons why judicial control would be inadequate must also be explained. Therefore, the petition should emphasize that the aims of the proceedings can readily be secured through lighter measures such as a travel ban, signature obligations, house confinement, or reporting obligations to specified authorities. In practice, in many files, the strongest line of defence is built around the argument that “detention is unnecessary; judicial control is sufficient.”
Procedural requests should also not be overlooked in the objection petition. Under Article 270 of the Criminal Procedure Code, where the public prosecutor’s opinion is obtained in objections filed under Articles 101 and 105, that opinion must be communicated to the suspect, the accused, or their defence counsel, and the relevant party may submit their views within three days. Moreover, under Article 271, objections are as a rule decided on the file, although the public prosecutor and then the defence counsel or representative may be heard where necessary. For this reason, from the perspective of the defence, it is important for the petition to request service of the prosecutor’s opinion if one is obtained and, where appropriate, to reserve the right to make additional submissions. If the objection is found well-founded, the reviewing authority does not merely quash the decision; it also decides directly on the matter under objection, meaning that it may order release or impose judicial control.
In conclusion, a petition objecting to detention should not be regarded as a short text made up of standard formulaic sentences. The evidentiary structure of each file, the legal characterization of the offence, any discussion relating to catalogue offences, the personal circumstances of the suspect, and the stage reached in the investigation will all differ from case to case. Accordingly, the petition should be prepared in a manner that is specific to the file, concrete, directed at the reasoning of the decision, and capable of strongly setting out the alternative of judicial control. Particularly in criminal investigations, the objection petition filed after the initial detention order often also forms the foundation of the broader defence strategy for the later stages of the case. For this reason, the preparation of a petition objecting to a detention order requires not a superficial approach, but a careful and technical one.
How Long Can Detention Last?
One of the most frequently asked questions concerning detention is how long a person may remain in detention. The answer cannot be given in a single sentence, because the duration of detention varies depending on the stage of the case, whether the offence falls within the jurisdiction of the assize court, the type of offence, and certain special circumstances. However, the basic principle is clear: detention is not an unlimited measure. Under Article 19 of the Constitution, detained persons have the right to be tried within a reasonable time and to request release during the investigation or prosecution. In other words, even where the law prescribes maximum periods, detention must in every case remain within the limits of “reasonable time” and “proportionality.”
Article 102 of the Criminal Procedure Code No. 5271 clearly regulates the general periods of detention. According to this provision, in matters not falling within the jurisdiction of the assize court, the period of detention may not exceed one year. However, in mandatory cases, this period may be extended by an additional six months, provided that the reasons are expressly stated. By contrast, in matters falling within the jurisdiction of the assize court, detention may not exceed two years. This period may also be extended where necessary and upon reasoned decision, but the total extension period may not exceed three years. In addition, for offences regulated in the Fourth, Fifth, Sixth, and Seventh Chapters of Part Four of Book Two of the Turkish Penal Code, as well as for offences falling within the scope of the Anti-Terror Law, the extension period may reach up to five years. Accordingly, in practice, detention may last for a considerable period in certain files depending on the type of offence.
In addition, the law prescribes a separate upper limit specifically for the investigation stage. Under Article 102/4 of the Criminal Procedure Code, during the investigation phase, detention may not exceed six months in matters outside the jurisdiction of the assize court and one year in matters within the jurisdiction of the assize court. However, for certain serious offences under the Turkish Penal Code, offences falling within the scope of the Anti-Terror Law, and collectively committed offences, this period may extend up to one year and six months, and may be further extended by six months upon a reasoned decision. This provision is highly important, because the prolongation of an investigation is not the same thing as the automatic continuation of detention. The investigation stage is also subject to a separate statutory limit, and that limit must be closely monitored in every case.
There is also a special regulation for children. Under Article 102/5 of the Criminal Procedure Code, the detention periods prescribed in the article are applied at half the normal rate for children who had not yet reached the age of fifteen at the time of the act, and at three-quarters of the normal rate for those who had not yet reached the age of eighteen. This regulation reflects the principle that detention should be even more exceptional in the case of children. In other words, detention periods for child suspects or accused persons are shorter than those applicable to adults.
However, there is a very important distinction here: the maximum periods stated in the law do not mean that “in every case, a person may necessarily remain detained for this entire duration.” According to the Constitutional Court, the conditions that existed at the outset to justify detention must also continue over time; moreover, this must be demonstrated with “relevant and sufficient” reasoning. In cases of prolonged detention, the Court does not consider it sufficient to rely merely on formulaic expressions; it requires a showing, in the context of the specific file, that the grounds for detention truly continue to exist. Therefore, a judge or court may not automatically order the continuation of detention for months or even years merely by referring to the nature of the alleged offence. At each review, the risk of absconding, the possibility of tampering with evidence, whether there remains uncollected evidence, and whether judicial control would suffice must all be reassessed.
One common error in practice is to evaluate the duration of detention solely by reference to the maximum statutory period. Yet even where the legal maximum has not yet been reached, it may still be argued that the detention has become disproportionate. This is because Article 19 of the Constitution guarantees not only compliance with “legal time limits,” but also the right to trial within a reasonable time and to request release. In its examination of prolonged detention, the Constitutional Court looks not only at the length of the period, but also at whether the lower courts have put forward sufficient reasoning to justify that duration. In particular, where the evidence has largely been collected, witnesses have been heard, and there is a fixed residence and strong social ties, it may be argued that judicial control measures would suffice in place of continued detention.
For this reason, the practical answer to the question “how long can detention last?” is this: the duration varies according to the nature of the case, but no detention is automatic or unlimited. As a general rule, in matters outside the jurisdiction of the assize court, the period is one year plus six months; in matters within the jurisdiction of the assize court, two years plus three years, with the possibility of extension up to five years in some serious offences. There are also separate and shorter upper limits for the investigation stage. Nevertheless, in every individual case, the true determining factor is whether the grounds for detention genuinely continue to exist and whether the proceedings can be adequately secured by a less restrictive measure. Therefore, it is of great importance to monitor detention periods technically, to submit release requests in a timely manner, and, where necessary, to challenge detention orders by way of objection.
Compensation in Cases of Prolonged Detention
The mere fact that detention has lasted a long time does not automatically give rise to compensation in every case. However, under Turkish law, there are clear compensation mechanisms for unlawful or disproportionate interferences with personal liberty. Article 19 of the Constitution guarantees that detained persons have the right to be tried within a reasonable time and to request release during the investigation or prosecution. The case law of the Constitutional Court likewise assesses whether the duration of detention is reasonable in light of the specific circumstances of each case; in order for prolonged detention to be regarded as legitimate, the lower courts must set out “relevant and sufficient” reasoning.
Article 141 of the Criminal Procedure Code regulates the compensation regime for damage arising from protective measures. According to this provision, persons who, during a criminal investigation or prosecution, are apprehended, detained, or kept in detention in violation of the conditions prescribed by law; persons who, although lawfully detained, are not brought before the competent judicial authority within a reasonable time and against whom no judgment is rendered during that period; and persons who, after being lawfully apprehended or detained, subsequently receive a decision of non-prosecution or acquittal, may claim pecuniary and non-pecuniary damages from the State. The same article also expressly provides that persons who are convicted, but whose period spent in custody and detention exceeds the duration of the sentence imposed, may likewise seek compensation.
For this reason, compensation in cases of prolonged detention should be considered along two separate axes. The first is where the detention itself, or the continuation of detention, lacked a legal basis from the outset or lost that legal basis during the course of proceedings. The second is where detention initially appeared lawful, but subsequently gives rise to compensation because the proceedings were prolonged, the justification ceased to exist, or the person was ultimately acquitted or the prosecution was discontinued. Particularly in the context of compensation for unjust detention, acquittal or a decision of non-prosecution is among the most common situations encountered in practice. In addition, even where there is a conviction, if the period spent in detention exceeds the sentence imposed, compensation may arise in relation to the excess period.
Another important point is this: in cases of prolonged detention, the first legal reflex should not be to file a compensation claim immediately, but rather to prioritize remedies aimed at regaining liberty. This is because Article 19 of the Constitution and the case law of the Constitutional Court are fundamentally directed at ensuring that the detained person obtains a prompt decision on their status and is released if the restriction is unlawful. Accordingly, in an ongoing detention situation, the primary remedies are a release request, an objection to the detention order, strengthening the defence during detention reviews, and, where necessary, constitutional complaint mechanisms. Compensation generally becomes more significant at a later stage, once the unlawfulness has become more clearly established.
The procedure for the compensation action also requires careful attention. Under Article 142 of the Criminal Procedure Code, the compensation claim must be brought within three months from the notification to the person concerned of the finalization of the decision or judgment, and in any event within one year following the date on which the decision became final. The action is brought before the assize court of the place of residence of the injured person; if that assize court is connected with the protective measure giving rise to the compensation claim and no other assize chamber exists in the same place, the nearest assize court is competent. The petition must set out the applicant’s identity and address details, identify the impugned measure, describe the nature and amount of the damage, and, where possible, annex the relevant supporting documents.
After any deficiencies in the petition have been remedied, the court sends a copy of the file to the Treasury representative, may conduct any necessary examination, and renders its decision at a hearing. The applicant, the public prosecutor, or the Treasury representative may file an appeal against the decision, and the law provides that such review shall be carried out as a matter of priority and urgency. Furthermore, pursuant to Article 141/3 of the Criminal Procedure Code, these compensation actions are, as a rule, brought against the State. Under Article 141/4, the State may, within one year, recourse against judges or public prosecutors who acted contrary to the requirements of their office in connection with the compensation paid.
In conclusion, the right to compensation in cases of prolonged detention is not merely theoretical. It is a genuine legal remedy expressly regulated by law and capable of covering both pecuniary and non-pecuniary damage. However, success in this area depends not merely on saying “the person remained detained for a long time,” but on correctly identifying under which paragraph the unlawfulness arose, explaining why the detention became disproportionate, and demonstrating the concrete damages suffered. For this reason, prolonged detention, compensation for unjust detention, and applications under Articles 141 and 142 of the Criminal Procedure Code require technical expertise; the file must be assessed in both its criminal procedure and compensation law dimensions.
Assessment and Conclusion
Although detention is one of the most severe protective measures in criminal proceedings, it remains, in legal terms, an exceptional measure. For this reason, the mere existence of a criminal accusation is not sufficient for a detention order to be issued. Concrete evidence indicating strong suspicion of guilt, the statutory grounds for detention, and the requirement of proportionality must all be satisfied cumulatively. Otherwise, detention may turn into an intervention that goes beyond the purpose of criminal proceedings and undermines the right to liberty and security of person. In this respect, Articles 100 and 101 of the Criminal Procedure Code clearly demonstrate that detention is not an arbitrary measure, but one that is subject to strict conditions, must be reasoned, and is open to review.
In practice, however, the detention process often gives rise to severe consequences not only for the suspect or accused, but also for their family and close circle. For this reason, it is of great importance to know what rights a detained person has, not to miss the deadline for objecting to the detention order, to prepare the objection petition in a technical manner suited to the contents of the case file, to monitor the period of detention carefully, and, where appropriate, to assess legal avenues relating to compensation for unjust detention. Particularly in decisions imposing or continuing detention on the basis of formulaic reasoning, an effective defence and timely applications may directly alter the course of the case.
The detention process is a sensitive area that requires not only expertise in criminal procedure, but also rapid intervention, correct strategy, and a strong defence reflex. For this reason, in order to avoid any loss of rights during the investigation and prosecution stages, to conduct the objection process against detention orders effectively, and to obtain legal support tailored to the specifics of your case, professional assistance is of great importance. Bektaş Law Office, Criminal Defense Attorney Bahadır Bektaş, and his experienced team in criminal law provide careful, diligent, and effective legal assistance to their clients in matters relating to detention, judicial control, objections to detention orders, and criminal investigations. For detailed information, please contact our office.
