Haydar Ergül was arrested by a police raid to his house on 28 July 2017 and is being tried for allegedly being a member of a terrorist organization. The prosecution is proceeding in front of İstanbul 22 Heavy Criminal Court.
At the ninth hearing of the case, the court decided to release five defendants and adjourned to December 26.
At the 10th hearing of the trial against 19 defendants on the charges of “PKK membership”, along with Haydar Ergül, the next trial will be held on May 14, 2020 for some defendants to make a statement regarding the report from the Forensic Medicine Institute (26 December).