Secret Witness Decision from the Constitutional Court
Official titleDecision of the Constitutional Court dated 2/4/2026 and numbered Application No. 2023/47320
In the application of a police officer dismissed from public service by a Decree-Law (KHK), the Constitutional Court ruled that the action taken based exclusively on data from a secret witness code-named 'Garson' violated the right to respect for private life. The Court found the claims regarding the presumption of innocence and the right to a trial within a reasonable time inadmissible.
Details of the Regulation
The applicant is a police officer who was dismissed from public service by a Decree-Law (KHK) on the grounds of having an affiliation or connection with FETÖ/PDY. He claimed that his dismissal without a finalized criminal court judgment against him violated his right to respect for private life, the presumption of innocence, and the right to a trial within a reasonable time. Despite the applicant's objections, the OHAL Commission and administrative courts rejected the application based on codings in the 'Garson' digital data, such as EA (persons who are within FETÖ and say 'The organization is my organization,' but have certain weaknesses) and ETÜD: 2015/1 (religious conversation meeting). However, there was a prosecution decision of "no grounds for prosecution" regarding the applicant issued by a prosecutor's office, which stated that no evidence showing ByLock usage, suspicious transactions at Bank Asya, or any other connection with FETÖ was detected. Furthermore, dissenting members in the administrative courts emphasized that coding data alone should not be considered evidence. The Constitutional Court found the claim of violation of the right to a trial within a reasonable time inadmissible due to the non-exhaustion of the Compensation Commission remedy, and found the claim of violation of the presumption of innocence manifestly ill-founded on the grounds that administrative acts do not carry a criminal nature and the courts did not make a determination of criminal liability. However, in the examination regarding the right to respect for private life, it rendered a decision of violation on the grounds that administrative and judicial authorities failed to evaluate the coding data indicating the applicant's connection with the organization in a holistic manner together with concrete events, facts, essential claims, and evidence that could be considered for and against the person, relying instead solely on coding data.
Questions You Might Have
- What is Garson data, and why did the Constitutional Court state that this data is not sufficient on its own?
- Garson data refers to digital materials containing profiling records regarding security department personnel, delivered by a secret witness alleged to be a member of FETÖ/PDY. The Constitutional Court stated that this data is not sufficient on its own because there are doubts regarding the consistency and accuracy of the codings, it must be supported by other evidence, and defenses to the contrary were not adequately examined.
- How will this decision affect the status of those dismissed by Decree-Law (KHK)?
- The decision opens the way for a retrial in cases where it is determined that the right to respect for private life of those dismissed by Decree-Law (KHK) has been violated. The decisions of administrative and judicial authorities based on 'Garson' data must now be supported by other concrete, reliable, and verifiable information, which serves as a new ray of hope for those who believe they are victims.
- Why were the applicant's other claims of rights violations not accepted?
- The claim regarding the right to a trial within a reasonable time was found inadmissible due to the applicant's failure to exhaust the remedy of applying to the Compensation Commission established under Law No. 7445; whereas the claim regarding the violation of the presumption of innocence was found inadmissible because administrative acts do not constitute a criminal conviction and the courts did not make a determination of criminal liability.
- What will be done to redress the violation?
- The Constitutional Court ruled that a copy of the decision be sent to the Ankara 25th Administrative Court for a retrial to be conducted. This court will render a new decision eliminating the causes of the violation of rights by conducting a retrial in accordance with the principles and grounds specified by the Constitutional Court.
Key Terms
- KHK (Kanun Hükmünde Kararname)
- Regulations with the force of law issued by the Council of Ministers or the President during states of emergency.
- FETÖ/PDY (Fetullahçı Terör Örgütü/Paralel Devlet Yapılanması)
- The structure held responsible by the Republic of Turkey for the July 15, 2016 coup attempt and recognized as a terrorist organization.
- Masumiyet Karinesi
- The principle that a person is considered innocent until proven guilty by a finalized court judgment.
- Özel Hayata Saygı Hakkı
- The right guaranteed by Article 20 of the Constitution and Article 8 of the ECHR, ensuring that an individual's personal life is not arbitrarily interfered with by public power.
- İltisak/İrtibat
- Legal concepts expressing the state of being related or connected to an organization without having an organic link or belonging to that organization.
- Garson Verileri
- Digital profiling records in which individuals within the organization were coded, handed over to law enforcement authorities by a secret witness alleged to be a member of FETÖ/PDY.
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REGAS Commentary
This decision sets a precedent for thousands of people dismissed from public service during the state of emergency based on codings of an intelligence nature, such as the 'Garson' digital data. Administrative and judicial authorities will no longer be able to deem such coding data sufficient on its own and will be required to support it with concrete evidence and carefully examine the individual's defense arguments. This situation will strengthen the legal remedy processes of citizens who consider themselves unjustly victimized through retrial, providing an important guarantee to prevent arbitrary practices of the administration.