Prosecutorial Investigations and Legal Processes
Prosecutorial Investigations and Legal Processes
1. What is a Prosecutorial Investigation?
A prosecutorial investigation is a legal process initiated by the public prosecutor when there is suspicion that a crime has been committed. The purpose of the investigation is to gather evidence, determine whether the suspect is guilty, and decide whether to file a formal criminal charge.
Prosecutorial investigations are regulated under Articles 160-161 of the Turkish Criminal Procedure Code (CMK) and involve collecting evidence, taking statements, and preparing an indictment.
2. How Does a Prosecutorial Investigation Begin?
A prosecutor may initiate an investigation based on information that a crime has been committed, either automatically (ex officio) or upon a formal complaint.
a) Crime Report or Complaint
- Citizens, victims, public institutions, or law enforcement can report a crime to the prosecutor's office.
- For certain crimes, the victim must personally file a complaint for prosecution to begin.
b) Detection by Law Enforcement
- If the police or gendarmerie identify a criminal offense or catch a suspect in the act, they report the case to the prosecutor.
- Crime scene investigations and evidence collection are conducted.
c) Cases Discovered via Media or Social Media
- Prosecutors can launch an investigation even if there is no formal complaint, based on news reports or social media content.
3. Stages of a Prosecutorial Investigation
A prosecutorial investigation consists of the following stages:
a) Collecting Evidence
- The prosecutor gathers witness testimonies, security camera footage, digital evidence, and forensic reports.
- Law enforcement agencies may be tasked with further investigation and reporting.
b) Taking Statements from Suspects and Witnesses
- The prosecutor may summon suspects and witnesses to testify.
- Suspects must be allowed to have a lawyer present during questioning (CMK Article 150).
- False testimony may lead to perjury charges against witnesses.
c) Requesting Judicial Control or Arrest
- The prosecutor may request judicial control measures (such as a travel ban or reporting to the police).
- If there is strong suspicion of a crime, the prosecutor may request pre-trial detention from the criminal court.
d) Preparing an Indictment or Issuing a Dismissal Decision
At the conclusion of the investigation, the prosecutor may take one of two actions:
-
Issuing an Indictment:
- If sufficient evidence exists, the prosecutor prepares an indictment.
- The case is filed with the court, and criminal proceedings begin.
-
Issuing a Dismissal Decision (Non-Prosecution - KYOK):
- If there is insufficient evidence or the crime cannot be proven, the prosecutor decides not to proceed with charges.
- In such cases, the suspect is cleared, and the case is closed.
4. How Long Does a Prosecutorial Investigation Take?
The duration of an investigation depends on the type of crime and the complexity of the case.
| Type of Crime | Estimated Investigation Duration |
|---|---|
| Minor offenses (defamation, fraud, etc.) | 1 - 6 months |
| Serious crimes (homicide, drug trafficking, etc.) | 6 months - 2 years |
| Organized crime and terrorism cases | 2 - 5 years |
If there is a lack of sufficient evidence, the investigation may be delayed or suspended.
5. Can a Prosecutorial Decision Be Challenged?
Yes, certain decisions made during a prosecutorial investigation can be appealed:
-
Appeal Against a Non-Prosecution Decision (KYOK):
- Victims or complainants can appeal within 15 days to the criminal court.
- If the appeal is accepted, the investigation is reopened.
-
Appeal Against a Pre-Trial Detention Decision:
- If a suspect is detained, they can appeal the detention order within 7 days.
- If the appeal is successful, the suspect may be released.
6. Rights of a Suspect During a Prosecutorial Investigation
Individuals under investigation are legally protected and have the following rights:
- Right to Defense: The right to consult with and be represented by a lawyer.
- Right to Remain Silent: The right not to provide self-incriminating testimony.
- Right to a Fair Trial: The right to have evidence collected lawfully.
- Right to Appeal: The right to challenge detention, seizure of assets, or other court decisions.
If a suspect believes the investigation is unfair or unlawful, they may request a review of the evidence or file a legal challenge.
7. Role of a Defense Lawyer in a Prosecutorial Investigation
Having an experienced criminal defense lawyer during the investigation process is essential. The lawyer’s responsibilities include:
- Protecting the suspect’s legal rights and guiding them through the process.
- Ensuring that illegally obtained evidence is not used against the suspect.
- Presenting counter-evidence to convince the prosecutor to drop charges.
- Challenging wrongful detention or asset seizures in court.
A well-prepared defense can significantly impact the outcome of an investigation and help prevent wrongful prosecution.
8. Conclusion
A prosecutorial investigation is a crucial legal process that determines whether a case will proceed to trial. Suspects and victims must be aware of their rights, actively follow the process, and seek legal support if necessary.
Understanding the legal procedures and working with a competent defense lawyer is essential for ensuring a fair investigation and legal protection

