Appealing a Prison Sentence and Legal Procedures
Appealing a Prison Sentence and Legal Procedures
1. What is an Appeal Against a Prison Sentence?
An appeal against a prison sentence is the legal process by which a convicted person or their lawyer petitions a higher court to review and overturn the decision of a lower court.
The purpose of an appeal is to correct legal errors, reduce the sentence, or have the conviction overturned entirely. There are three main stages for appealing a prison sentence: regional appeal (istinaf), supreme court appeal (temyiz), and constitutional or human rights appeals.
2. Grounds for Appealing a Prison Sentence
A prison sentence can be appealed in the following situations:
- Unlawful Decision: If the court issued an unfair or legally incorrect ruling.
- Errors in Evidence Evaluation: If strong exculpatory evidence was ignored or misinterpreted.
- Procedural Violations: If the court failed to follow fair trial principles.
- Disproportionate Sentences: If the punishment is excessive compared to the crime.
- New Evidence: If new evidence emerges proving the defendant’s innocence.
3. Legal Remedies for Appealing a Prison Sentence
Before a prison sentence becomes final, two main legal remedies can be used:
a) Regional Appeal (Istinaf) – Court of Appeals
A regional appeal is a review of the lower court’s decision by a higher court (Regional Court of Appeal, BAM).
- Who Can Appeal? The defendant, their lawyer, or the prosecutor.
- Deadline for Appeal: Within 7 days after the verdict is announced.
- Court Handling the Appeal: Regional Court of Appeal (BAM).
- Outcome: The court may uphold, overturn, or reduce the sentence.
Possible Results of an Istinaf Appeal:
- The verdict is upheld, and the sentence remains the same.
- The court finds legal errors and orders a retrial.
- The court reduces the sentence based on mitigating factors.
b) Supreme Court Appeal (Temyiz) – Court of Cassation
If the Court of Appeal upholds the prison sentence, the case can be appealed to the Court of Cassation (Yargıtay).
- Who Can Appeal? The defendant, lawyer, or prosecutor.
- Deadline for Appeal: Within 15 days after the appeal decision.
- Court Handling the Appeal: Court of Cassation (Yargıtay).
- Outcome: The sentence can be confirmed, overturned, or sent back for retrial.
Possible Results of a Supreme Court Appeal:
- The Court of Cassation upholds the ruling, making the sentence final.
- The court overturns the ruling due to legal errors and orders a retrial.
- The court determines a lack of evidence and dismisses the case.
4. Appeals Against a Finalized Prison Sentence
If a prison sentence becomes final after both regional and supreme court appeals, additional legal remedies can be pursued:
a) Individual Application to the Constitutional Court
If the prison sentence violates fundamental rights, the convicted person can file an individual complaint with the Constitutional Court.
- Deadline for Application: Within 30 days after the ruling is finalized.
- Grounds for Appeal: Violation of fair trial rights, freedom of expression, or the use of illegal evidence.
Possible Outcomes:
- The Constitutional Court may annul the verdict.
- It may award compensation for wrongful conviction.
b) Appeal to the European Court of Human Rights (ECHR)
If the Constitutional Court rejects the appeal, the case can be taken to the European Court of Human Rights (ECHR).
- Deadline for Application: Within 6 months after the final decision.
- Grounds for Appeal: Violation of human rights, unfair trial, or politically motivated sentences.
Possible Outcomes:
- The ECHR may order Turkey to compensate the applicant for wrongful imprisonment.
- The government may be required to reconsider the conviction.
5. How to Track the Appeal Process?
It is crucial to carefully monitor the appeal process. Steps to follow:
- File the appeal within the legal deadline after receiving the court’s decision.
- Track the case via the e-Government (e-Devlet) and UYAP (National Judiciary Informatics System) platforms.
- Work with an experienced criminal defense lawyer to prepare a strong appeal.
- If human rights violations are suspected, consider appealing to the Constitutional Court or ECHR.
6. Importance of a Defense Lawyer in Appealing a Prison Sentence
A defense lawyer plays a critical role in protecting the defendant’s rights and preventing unjust convictions. A lawyer can:
- Identify weaknesses in the court’s decision and argue for a retrial.
- Challenge unlawful verdicts in higher courts to obtain a favorable decision.
- Prepare appeals to the Constitutional Court and ECHR if human rights violations are found.
- Seek sentence reductions by highlighting mitigating circumstances.
7. Conclusion
Appealing a prison sentence is essential to ensure fair treatment and legal justice.
- The first step is to appeal to the Court of Appeals (Istinaf) and then the Supreme Court (Yargıtay) if necessary.
- If legal errors or human rights violations are present, an appeal can be made to the Constitutional Court or ECHR.
- Working with a skilled criminal defense lawyer improves the chances of a successful appeal.
Using legal remedies effectively can prevent wrongful imprisonment and ensure a fair trial process.

