117_6 substantive_scope 6. On 31 July 2000 the applicants, together with several other persons, gathered in a public park in Ankara in protest against F-type prisons and the events which had occurred in Bergama Prison (violent clashes had taken place between the detainees and security forces on 27 July 2000). The participants wanted to read out a press statement in order to express their concerns about F-type prisons and the events in Bergama Prison. Police officers warned the crowd over a megaphone that the demonstration was illegal under Law no. 2911 on Meetings and Demonstration Marches. The group ignored the police warning. The police officers then arrested twenty- four persons, including the applicants, and took them into custody. It appears from the newspaper articles submitted by the applicants that the police officers used force in order to disperse the protesters. As a result, some of the protestors were injured and a number of them were arrested by the police officers.