Introduction
Repeat drug use during probation in Turkey is a serious legal issue under Article 191 of the Turkish Penal Code. Many people believe that once a personal-use drug case is referred to probation, the criminal file is no longer dangerous. This is incorrect. Probation under Article 191 is a conditional legal opportunity. If the suspect complies with the obligations, avoids further drug use and completes the process successfully, the case may end without a criminal conviction. However, if the person uses drugs again during the postponement period, purchases drugs again, accepts drugs again or possesses drugs again for personal use, this is treated as a violation and may result in the opening of a public criminal case.
Article 191 regulates the offence of purchasing, accepting, possessing or using narcotic or stimulant substances for personal use. The statutory penalty is two to five years of imprisonment. However, in the investigation stage, the public prosecutor generally postpones the filing of public prosecution for five years without requiring the ordinary conditions of Article 171 of the Criminal Procedure Code. During this period, the suspect is placed under probation for at least one year, and this period may be extended in six-month periods for up to two additional years. If necessary, treatment may also be imposed.
The most important rule for this article is Article 191/5: if the person uses drugs again or again purchases, accepts or possesses drugs for personal use during the postponement period, this conduct is treated as a violation reason under Article 191/4 and is not made the subject of a separate investigation or prosecution at that stage.
1. What Is Article 191 Probation in Turkey?
Article 191 probation is a special mechanism applied in personal-use drug cases. It does not mean that drug use is legal. It also does not mean that the case is closed immediately. Instead, the prosecutor gives the suspect a monitored opportunity to avoid a criminal trial.
The offence under Article 191 covers four types of conduct:
Purchasing narcotic or stimulant substances for personal use;
Accepting such substances for personal use;
Possessing such substances for personal use;
Using narcotic or stimulant substances.
The statutory penalty is two to five years of imprisonment. However, instead of immediately filing an indictment, the prosecutor postpones the public prosecution for five years. During this postponement period, the suspect is placed under probation and may be required to undergo treatment if necessary.
This mechanism aims to balance criminal law and rehabilitation. The law recognizes that personal-use drug cases may require treatment, monitoring and social support rather than immediate imprisonment. But this opportunity depends on strict compliance.
2. The Five-Year Postponement Period
The five-year postponement period is central to Article 191. Once the prosecutor issues a decision to postpone public prosecution, the suspect enters a legally sensitive period. During this period, the person must comply with all obligations and avoid repeat drug-related conduct.
The prosecutor must warn the suspect about the legal consequences of failing to comply with obligations or violating prohibitions during the postponement period. The postponement decision is also notified to law enforcement.
This warning is not a formality. It is legally important because the person must understand that future conduct can activate the criminal case. If proper notification or warning is missing, the defence may later challenge whether the violation process was lawfully established.
3. Duration of Probation
Under the current Article 191 framework, probation is applied for at least one year during the postponement period. This probation period may be extended by the public prosecutor, either upon the proposal of the probation directorate or ex officio, in six-month periods for up to two additional years. Where necessary, treatment may also be ordered during probation.
This means that probation can last longer than one year. The person should not assume that the matter is over after the first meeting or after a few clean tests. The five-year postponement period remains legally important even if the active probation program is shorter.
The prosecutor also decides at least twice per year during the postponement period to refer the suspect to the relevant institution to determine whether they have used drugs.
4. What Counts as Repeat Drug Use During Probation?
Repeat drug use means that the person uses a narcotic or stimulant substance again during the Article 191 postponement period. This may be detected through:
A positive drug test;
Police intervention;
A new possession incident;
Hospital or medical records;
Statements;
Probation monitoring;
Another criminal investigation.
Article 191/4 clearly states that if the person uses narcotic or stimulant substances during the postponement period, a public criminal case is filed. Article 191/5 further clarifies that repeated use, repeated purchase, repeated acceptance or repeated possession for personal use is considered a violation reason and is not made the subject of a separate investigation or prosecution at that stage.
This distinction is very important. Repeat use during probation is not ignored. It is also not normally treated as a completely independent new Article 191 file at that stage. Instead, it causes the benefit of postponed prosecution to be lost and leads to prosecution for the Article 191 offence.
5. Repeat Use Is Different from Ordinary Non-Compliance
Article 191 distinguishes between different types of violation. One type is persistent failure to comply with obligations or treatment requirements. Another type is repeat purchase, acceptance, possession or use of drugs.
For non-compliance with obligations or treatment requirements, the law uses the concept of persistence. In practice, this means that isolated or excusable failures may require closer analysis. For example, missing one appointment due to hospitalization may be different from repeatedly ignoring probation notices.
However, repeat drug use is treated more directly. If it is proven that the person used drugs again during the postponement period, the prosecutor may file the public case. This makes toxicology reports, sample collection procedure and timing especially important.
6. Is Repeat Drug Use a Separate Criminal Case?
Article 191/5 answers this question directly. If the person, during the postponement period, again purchases, accepts or possesses drugs for personal use or uses drugs, this is treated as a violation under Article 191/4 and is not made the subject of a separate investigation and prosecution.
This means that the legal consequence is usually the opening of the postponed public case. The repeated conduct becomes the reason why the prosecutor no longer continues the postponed prosecution benefit.
For example, if a person received a five-year postponement and probation decision for cannabis use, and later uses cannabis again during the postponement period, the later use is treated as a violation. The prosecutor may file a public criminal case based on the Article 191 offence. The person will then be tried before the criminal court.
7. Public Prosecution After Repeat Drug Use
If repeat drug use is established, the prosecutor may file an indictment. Once the public case is opened, the matter moves from the investigation stage to the prosecution stage. The person becomes a defendant in a criminal trial.
This does not mean automatic conviction. The court must still evaluate:
Whether the original Article 191 offence is proven;
Whether the postponement and probation decision was properly notified;
Whether the repeat use occurred during the postponement period;
Whether the evidence of repeat use is lawful and reliable;
Whether the toxicology report is scientifically sufficient;
Whether the defendant has valid objections or medical explanations.
The opening of a public case is serious, but the defence still has important legal arguments.
8. Drug Testing and Repeat Use
Drug testing is one of the most common ways repeat use is alleged. Probation authorities or relevant institutions may require urine, blood or other biological samples. A positive result may be used to argue that the person used drugs again.
However, a toxicology report must be examined carefully. A positive test should not be accepted mechanically. The defence should review:
When the sample was taken;
Which biological sample was used;
Whether the person was properly notified;
Whether sample identity was verified;
Whether chain of custody was preserved;
Whether the test was only a screening test or confirmatory test;
Whether medication could explain the result;
Whether the result proves use during the postponement period;
Whether the detected substance is the same as the alleged drug.
The prosecutor must refer the suspect to the relevant institution at least twice per year to determine drug use during the postponement period, but every test must still be lawful and reliable.
9. Timing of the Positive Test
Timing is critical in repeat drug use cases. A test result does not always prove exactly when a person used a substance. Some substances may remain detectable for a period after use. Detection windows vary depending on the substance, sample type, frequency of use, metabolism and laboratory method.
For example, a positive result shortly after the beginning of probation may raise questions about whether the use occurred before or after the postponement decision became effective. Similarly, if the postponement decision was not properly notified or had not become enforceable, the defence may argue that the alleged violation cannot be legally relied upon.
A strong defence should compare:
Date of the original offence;
Date of the postponement decision;
Date of notification;
Date probation began;
Date of sample collection;
Date of test result;
Possible detection window.
If timing is unclear, the violation allegation may be challenged.
10. Notification and Legal Warning
Notification is one of the most important procedural safeguards in Article 191 cases. The suspect must be notified of the postponement decision and probation obligations. The person must also be warned about the consequences of non-compliance and repeat drug use.
Legal commentary and case practice emphasize that the postponement and probation decision must be properly notified before the probation process can lawfully produce consequences. If implementation begins before the decision is properly finalized or before the person is properly warned, later violation allegations may be legally problematic.
Therefore, in any repeat use case, the defence should ask:
Was the postponement decision served properly?
Was the person warned about consequences?
Did the person understand the obligations?
Was the probation office notification valid?
Was the person called to apply within the legal time?
Was there any translation issue for a foreign national?
If notification is defective, the prosecution’s violation argument may be weakened.
11. Repeat Possession During Probation
Repeat drug use is not the only violation. Article 191 also covers repeat purchase, acceptance or possession of drugs for personal use during the postponement period. If the person is again found with drugs for personal use, this can lead to public prosecution.
However, possession must still be proven. If drugs are found in a shared vehicle, shared apartment, hotel room, workplace or another person’s bag, the prosecution must prove that the suspect knowingly possessed the substance.
The defence may argue:
The substance was not found on the person;
The place was shared;
Others had access;
There is no fingerprint or DNA evidence;
The suspect had no knowledge;
The search record is unclear;
The substance belonged to another person.
A repeat possession allegation should not be accepted merely because the person was nearby.
12. Difference Between Repeat Personal Use and Drug Trafficking
Repeat drug use during Article 191 probation should be distinguished from drug trafficking under Article 188. If the person again uses drugs or possesses a small amount for personal use, Article 191/5 treats this as a violation of the existing postponement process.
However, if the later incident includes evidence of sale, supply, transportation, storage, importation or possession for trafficking purposes, the prosecution may allege Article 188 drug trafficking instead of treating the matter only as a personal-use violation.
Factors that may suggest Article 188 include:
Multiple sale-ready packages;
Precision scales;
Packaging materials;
Buyer statements;
Messages about price or delivery;
Unexplained cash;
Surveillance of sales;
Transportation for delivery;
Storage of large amounts.
This distinction is crucial. Repeat personal use may lead to opening the Article 191 case. Trafficking allegations may lead to much heavier penalties and detention risk.
13. Repeat Use and Article 191/6
Article 191/6 creates another important consequence. After a public case is filed under Article 191/4, if a later investigation is opened on the allegation that the person again committed the Article 191/1 offence, the prosecutor cannot issue a new postponement decision under Article 191/2.
This rule means that losing the first postponement opportunity can have long-term consequences. Once a public case has been filed due to violation, later personal-use allegations may not benefit from the same postponement mechanism.
For this reason, repeat drug use during probation should be taken very seriously. The first probation process is often the most important opportunity to avoid a criminal conviction.
14. What Happens If Probation Is Completed Successfully?
If the suspect does not violate the obligations or prohibitions during the postponement period, the prosecutor issues a decision of non-prosecution.
This is the best outcome in Article 191 cases. It means the person avoids a public criminal trial for the offence. However, successful completion requires compliance throughout the relevant process. The person should attend appointments, respond to notices, avoid repeat use, comply with treatment if ordered and keep address information current.
It is useful to keep copies of:
Probation attendance records;
Negative test results;
Medical documents;
Treatment records;
Notifications;
Written explanations;
Communication with the probation office.
These documents may protect the person if an incorrect violation report is later prepared.
15. Medical Explanations for a Positive Test
A positive drug test may sometimes be linked to prescribed medication or lawful medical treatment. Certain painkillers, psychiatric medications, sedatives, stimulant medications or opioid treatment drugs may create toxicology findings that require careful interpretation.
The defence should collect:
Prescriptions;
Doctor reports;
Pharmacy receipts;
Hospital records;
Medication boxes;
Dosage instructions;
Treatment history;
Expert medical opinions.
The issue is not only whether a substance was detected, but whether the detection proves unlawful drug use. A toxicology report must be interpreted with medical context.
16. Foreign Nationals and Repeat Drug Use During Probation
Foreign nationals face additional risks in repeat drug use cases. A violation under Article 191 may lead not only to a criminal trial, but also to immigration consequences such as deportation, administrative detention, residence permit cancellation or entry bans.
Foreigners may also face practical problems. They may not understand Turkish notifications, may change address, may leave Turkey temporarily, or may not understand probation obligations. These issues can create accidental violations.
A foreign suspect should request interpretation, keep copies of all documents, update address information and seek legal assistance immediately after any violation notice. If deportation proceedings begin, the defence must coordinate the criminal file and immigration file.
A repeat drug use allegation does not automatically mean the person is a drug trafficker or a concrete public order threat. The defence should distinguish personal use from trafficking and present residence, family, employment, education or medical treatment ties where relevant.
17. Defence Strategies After Repeat Drug Use Allegation
A defence strategy should be based on the exact reason for the alleged violation. Common defence arguments include:
The postponement decision was not properly notified.
The person was not properly warned about consequences.
The probation process began before the decision became enforceable.
The positive test does not prove use during the postponement period.
The sample chain of custody is defective.
The test was not confirmed by a reliable method.
Prescription medication explains the result.
The person had a valid medical condition.
The alleged possession occurred in a shared place.
The person had no knowledge or control over the substance.
The search was unlawful.
The conduct is not trafficking and should not be treated as Article 188.
The violation report is incomplete or inaccurate.
The defence should be supported with documents, not only explanations.
18. Challenging a Toxicology Report
A toxicology report may be challenged if it is scientifically or procedurally weak. The defence may request a supplementary expert report or raise objections during trial.
Important objections include:
The sample was not properly labelled;
Identity verification is unclear;
The chain of custody is incomplete;
The report does not state the testing method;
Only a preliminary screening test was used;
No confirmatory test was performed;
The report does not explain detection timing;
The detected substance may be linked to medication;
The result is interpreted beyond its scientific limits;
The report does not prove use after probation began.
In repeat use cases, the timing and reliability of the test may determine whether the public prosecution was lawfully opened.
19. The Role of the Defence in the Public Case
If a public case is filed after repeat drug use, the defence should not assume that conviction is inevitable. The court must still evaluate the offence, evidence and procedural conditions.
The defence should request:
Examination of the original investigation file;
Review of the postponement and notification documents;
Review of probation office records;
Examination of toxicology reports;
Assessment of sample chain of custody;
Hearing of relevant officers if necessary;
Medical examination where appropriate;
Evaluation of whether the conduct occurred during the legal period;
Consideration of treatment and rehabilitation documents.
The court should not convict merely because a probation office reported violation. The violation must be legally and evidentially established.
20. Practical Checklist for Repeat Use Cases
A lawyer reviewing a repeat drug use during probation file should ask:
When was the original Article 191 offence committed?
When did the prosecutor issue the postponement decision?
Was the decision properly notified?
Was the warning about consequences clear?
When did probation actually begin?
Was the person called to the probation office lawfully?
When was the alleged repeat use?
How was repeat use detected?
Was there a toxicology report?
Was the sample collected lawfully?
Was chain of custody preserved?
Could medication explain the result?
Does the test prove use during the postponement period?
Was the later incident personal use or alleged trafficking?
Was there any unlawful search?
Was the person a foreign national?
Are there deportation risks?
Can medical or rehabilitation documents be submitted?
This checklist helps identify procedural defects and substantive defence opportunities.
Frequently Asked Questions
What happens if someone uses drugs again during probation in Turkey?
If a person uses drugs again during the Article 191 postponement period, this is treated as a violation. The prosecutor may file a public criminal case against the person.
Is repeat drug use during probation a separate investigation?
Under Article 191/5, repeat purchase, acceptance, possession or use of drugs for personal use during the postponement period is treated as a violation reason under Article 191/4 and is not made the subject of a separate investigation or prosecution at that stage.
How long is the postponement period under Article 191?
The public prosecution is postponed for five years. During that period, probation is applied for at least one year and may be extended in six-month periods for up to two additional years.
Can a positive drug test be challenged?
Yes. The defence may challenge sample collection, notification, chain of custody, testing method, timing, medical explanations and whether the result proves use during the postponement period.
What happens if the probation process is completed successfully?
If the person does not violate obligations or prohibitions during the postponement period, a decision of non-prosecution is issued.
Can repeat drug use become a trafficking case?
Repeat personal use is normally treated under Article 191 as a violation. However, if the later incident includes evidence of sale, supply, transportation, storage or distribution, prosecutors may allege Article 188 drug trafficking.
Conclusion
Repeat drug use during probation in Turkey has serious legal consequences under Article 191 of the Turkish Penal Code. The Article 191 system gives the suspect an important chance to avoid a criminal trial: public prosecution is postponed for five years, probation is applied and treatment may be ordered where necessary. If the suspect completes the process without violation, a non-prosecution decision may be issued.
However, this opportunity is conditional. If the person uses drugs again, purchases drugs again, accepts drugs again or possesses drugs again for personal use during the postponement period, this is treated as a violation reason. The repeated conduct is not normally opened as a separate personal-use prosecution at that stage; instead, it leads to the opening of the postponed public case.
A repeat use allegation should still be examined carefully. The prosecutor and court must evaluate whether the postponement decision was properly notified, whether the probation process was lawful, whether the repeat use occurred during the relevant period, whether the toxicology report is reliable, whether sample chain of custody is complete, whether medication explains the result, and whether the later event is truly personal use rather than trafficking.
For suspects, the practical lesson is clear: Article 191 probation must be taken seriously. Every appointment, test, notification and treatment obligation matters. For defence lawyers, the key task is to examine both the procedural validity of the probation process and the scientific reliability of the repeat use evidence. A well-prepared defence may prevent an unlawful violation finding, challenge weak toxicology evidence and ensure that personal-use cases are not wrongly escalated into more serious criminal consequences.
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