Celal Çelik, a judge-turned-lawyer representing main opposition Republican People’s Party (CHP) leader Kemal Kılıçdaroğlu, was detained at his home in Ankara on Friday.
The detention was carried out as part of an İstanbul-based investigation into the Gülen movement over its alleged role in stopping National Intelligence Organization (MIT) trucks that were suspected of illegally transporting weapons to Syria in 2014.
According to Turkey’s state-run Anadolu news agency, Çelik canceled his cable subscription when Gülen-linked television stations such as Samanyolu TV and Bugün TV were removed from the Digitürk platform.
The report said that Çelik was in close contact with the advisor to Kılıçdaroğlu, Fatih Gürsul, who was arrested in December 2016 on charges of using ByLock, a smart phone application that authorities claim is a communication tool between members of the Gülen movement.
CHP spokesperson Bülent Tezcan, who spoke to Halk TV, criticized the detention decision and called it part of a “serious conspiracy.”
Turkey survived a military coup attempt on July 15, 2016 coup attempt for which the government accuses the Gülen movement. The movement denies involvement in the abortive coup.
Turkey’s Justice Ministry announced on July 13 that 50,510 people have been arrested and 169,013 have been the subject of legal proceedings on coup charges since the failed coup.
Turkey has suspended or dismissed more than 150,000 judges, teachers, police and civil servants after the coup attempt.