The Istanbul Chief Public Prosecutor's Office prepared an indictment against Yılmaz Efe and Ali Yaşar Koz, the owners of the venue called Kütüphane raided in a drug operation in December 2025. The indictment alleged that the owners allowed drug use.
The indictment stated that the owners allowed customers to enter with drugs and turned a blind eye to drug use at the venue. Messages and audio recordings found in phone examinations were also included in the file.