7.  The applicants were born in 1987 and 1985, respectively, and live in the Hozat district of Tunceli. 8.  On 5 April 2007 the applicants attended a concert performed by a band called “Grup Yorum” in Hozat. During the concert they chanted certain slogans, such as “Revolutionary prisoners are immortal” (“Devrimci tutsaklar ölümsüzdür”), “Revolutionary prisoners are our honour” (“Devrimci tutsaklar onurumuzdur”). 9.  On 17 October 2007 the Malatya public prosecutor filed an indictment with the Malatya Assize Court charging the applicants with disseminating propaganda in favour of the “DHKP/C” (Revolutionary People’s Liberation Party/Front), an illegal armed organisation, under section 7(2) of the Prevention of Terrorism Act (Law no. 3713). The public prosecutor noted that the first applicant had chanted the slogan “Revolutionary prisoners are our honour” (“Devrimci tutsaklar onurumuzdur”) during the concert. As regards the second applicant, the public prosecutor alleged that he had chanted the following slogans during the same concert: “Mahir, Hüseyin, Ulaş; Fight until emancipation”[1] (“Mahir, Hüseyin, Ulaş; Kurtuluşa kadar savaş”); “Martyrs of the revolution are immortal” (“Devrim şehitleri ölümsüzdür”); “Revolutionary prisoners are our honour”, “Victory on mountains, emancipation at the front; long live victory, long live resistance” (“Dağlarda zafer, cephede kurtuluş; yaşasın zafer, yaşasın direniş”). 10.  During the criminal proceedings against them, the applicants stated that they had attended the concert of 5 April 2007 and had sung along with the musicians but had not chanted the slogans noted in the indictment. 11.  On 6 March 2008 the Malatya Assize Court convicted the applicants as charged and sentenced them to ten months’ imprisonment each. In its judgment, the assize court considered it established, on the basis of a police video recording of the concert of 5 April 2007, a report on the video recording, the indictment, the applicants’ defence submissions and the public prosecutor’s observations on the merits of the case, that the applicants had chanted the slogans noted in the indictment. The court considered that the concert in question had become a propaganda activity in favour of the DHKP/C and that the applicants had chanted slogans that were used by that organisation. The Malatya Assize Court concluded that the applicants had committed the offence of dissemination of propaganda in favour of a terrorist organisation. 12.  The applicants appealed. 13.  On 4 July 2011 the Court of Cassation upheld the first-instance court’s judgment. 14.  On 13 and 14 September 2011 the applicants were informed that they had to start serving their prison sentences within ten days. According to the applicants’ submissions, which were not contested by the Government, upon receipt of the summons to serve the prison sentences, both applicants duly served them.