According to his son, Özgür, Mumcu had an appointment with retired prosecutor Baki Tuğ on 27 January to learn more about Abdullah Öcalan's suspected ties with the MİT (the state was officially fighting his militant organization, the PKK). Öcalan was detained on 31 March 1972 while studying political sciences at the University of Ankara. Per clause 16/1 of the Martial Law (№ 1402), he was sentenced to three months in jail for participating in a boycott. He was released on 24 October 1972 after the National Intelligence Organization forwarded a message to the prosecutor handling the case, Tuğ, that one of the suspects was one of their agents. Tuğ later said that he could not remember whether the agent was Öcalan, or one of the other suspects.