A comprehensive legal summary of the ECtHR Grand Chamber’s judgment in Kavala v. Türkiye (No. 2)

A 17-judge panel of the European Court of Human Rights (ECtHR) ruled on August 25, 2026, in Kavala v. Türkiye (No. 2), finding multiple violations of the European Convention on Human Rights (ECHR) related to the ongoing prosecution and detention of Osman Kavala, a Turkish human rights activist. The Grand Chamber's decision marks the culmination of a long-standing legal battle involving three distinct proceedings before the court, each addressing different aspects of Kavala’s treatment by Turkish authorities. The case centers on the criminal proceedings against Kavala, who was arrested in 2016 following the failed coup attempt and linked to the 2013 Gezi Park protests. In 2019, the ECtHR ruled that his initial detention lacked sufficient grounds, violating Articles 5 and 18 of the ECHR. That ruling, which found Turkey had failed to respect Kavala’s rights, became final in May 2020. Despite this, Kavala remained in custody, prompting further action from the Council of Europe’s Committee of Ministers. In February 2022, the committee launched infringement proceedings, alleging Turkey had not complied with the 2019 judgment. On July 11, 2022, the Grand Chamber confirmed Turkey’s failure to uphold its obligations under Article 46 of the Convention, noting that subsequent charges against Kavala were based on previously examined evidence rather than new facts. This latest judgment, delivered in August 2026, represents a direct examination of the legality of Kavala’s continued detention, his conviction in the Gezi Park trial, and the imposition of an aggravated life sentence. Unlike prior rulings, which focused primarily on compliance with earlier decisions, the Grand Chamber assessed the fairness of the entire criminal process. By a vote of 15 to 2, the court found violations of several key articles of the ECHR, including Article 10 (freedom of expression), Article 11 (freedom of peaceful assembly), Article 6 § 1 (right to a fair trial), Article 5 § 1 (right to liberty and security), and Article 3 (prohibition of inhuman treatment). The court emphasized that the aggravated life sentence imposed on Kavala offered no possibility of conditional release or review, effectively rendering it a form of indefinite detention. The ruling declared Kavala’s conviction “null and void” under Convention law and ordered Turkey to secure his immediate release. The court also mandated that all consequences of his conviction be eliminated, requiring both individual and general measures to ensure such violations do not recur. These measures include reforms to the judicial system and legislative changes aimed at preventing future abuses of due process. The case has been marked by repeated legal challenges, reflecting deep divisions over how Turkey handles political dissent and human rights defenders. While the ECtHR has consistently found violations of Kavala’s rights, Turkish officials have maintained that the charges against him are legitimate and necessary for national security. The government has argued that Kavala’s activism posed a threat to public order during times of unrest, though critics contend that these claims lack evidentiary support. International observers have expressed concern over the implications of the ruling, particularly regarding the broader context of human rights in Turkey. The ECtHR’s findings highlight systemic issues in the country’s judiciary, including the use of vague criminal laws to suppress criticism and the lack of procedural safeguards for individuals accused of politically motivated crimes. The court’s emphasis on the need for reform underscores the urgency of addressing these concerns. Moving forward, the implementation of the ECtHR’s orders will depend on Turkey’s willingness to comply with the ruling. The court has given no indication of further intervention unless Turkey fails to act. Meanwhile, Kavala’s legal team continues to advocate for his release, while human rights organizations monitor the situation closely. The outcome of this case could set important precedents for the treatment of political prisoners and the protection of fundamental rights in Turkey.