Detention: Rustem was detained on February 5, 2025, in the Bakhchysarai district of the Autonomous Republic of Crimea (temporarily occupied territory of Ukraine).

Sentence: As of August 28, 2026, there is no information in verified open sources about a sentence being issued. Rustem Mustafayev is charged under Part 2 of Article 205.5 of the Russian Criminal Code ('participation in the activities of an organization recognized as terrorist in Russia'). Ukrainian human rights organizations consider the persecution politically motivated and link it to another wave of repression against Crimean Tatars.

Rustem Mustafayev was born on July 22, 1987. He is a Crimean Tatar. Before his arrest, he lived in the Bakhchysarai district and worked as a plumber. He is married and has three children. There is no information in open sources about his political or public activities before his detention.

In early February 2025, Russian security forces conducted mass searches in the homes of Crimean Tatars in the Bakhchysarai district. After the investigative actions, Rustem Mustafayev was detained and taken to the occupying law enforcement agencies. Human rights defenders note that such mass detentions have become a typical practice of the Russian authorities in occupied Crimea.

After his arrest, Rustem was charged under Part 2 of Article 205.5 of the Russian Criminal Code – 'participation in the activities of a terrorist organization'. The Russian Federation systematically applies this article to Crimean Muslims, accusing them of involvement with the organization 'Hizb ut-Tahrir', which is legal in Ukraine but banned in Russia. Ukrainian and international human rights organizations emphasize that such cases are mainly based on secret witnesses, religious literature examinations, and other evidence that do not meet fair trial standards.

After the preventive measure was chosen, Rustem Mustafayev was placed in a pre-trial detention center. Open sources indicated that the detention period was repeatedly extended during the pre-trial investigation. Human rights defenders emphasize that Crimean Tatars prosecuted in similar cases often remain in detention for long periods without a court sentence, and the proceedings are accompanied by numerous procedural violations.

Ukrainian human rights organizations view Rustem Mustafayev's case as part of a systemic policy of persecution of Crimean Tatars and suppression of civic activity in occupied Crimea. Such criminal proceedings are regularly documented by international human rights institutions as violations of international humanitarian law and the right to a fair trial.

As of August 28, 2026, Rustem Mustafayev remains in custody. There is no information in verified open sources about a sentence coming into force or his release. His case remains one of the examples of criminal prosecution of Crimean Tatars on politically motivated charges.

Information used from open sources: Representation of the President of Ukraine in the Autonomous Republic of Crimea, Crimean Solidarity, Crimean Tatar Resource Center, Human Rights Project 'Support for Political Prisoners. Memorial', Center for Journalistic Investigations, Suspilne Crimea.

Photo: Suspilne Crimea.

Update date: 28.08.2026.