11.  The applicant was born on 2 February 1984 and lives in İzmir. 12.  On 29 May 2001 at about 10.15 p.m., the applicant was taken into custody by police officers from the anti-terrorism branch of the İzmir Security Directorate on suspicion of having participated in an unlawful demonstration in support of an illegal organisation, namely the PKK (the Workers’ Party of Kurdistan). The applicant was also accused of hanging an illegal banner from a bridge in Bornova on 26 April 2001. 13.  At about 12.30 a.m. on 30 May 2001 the applicant was taken to the Atatürk Teaching and Research Hospital, where he was examined by a doctor. The medical report stated that there was no trace of ill-treatment on his body. 14.  Subsequently, at about 1 a.m., the applicant was interrogated at the anti-terrorism branch in the absence of a lawyer. According to a form explaining arrested persons’ rights which the applicant had signed, he had been reminded of the charges against him and of his right to remain silent. In his statement, the applicant admitted his involvement in the youth branch of HADEP (Halkın Demokrasi Partisi – the People’s Democracy Party). He gave the names of several persons who worked for the youth branch of the Bornova District Office. He explained that he was the assistant youth press and publications officer and was also responsible for the Osmangazi neighbourhood. He further stated that it had been part of his job to assign duties to other members of the youth branch. He admitted that he had participated in the demonstration on 29 May 2001 organised by HADEP in support of the imprisoned leader of the PKK. He said that there had been about sixty demonstrators present and that the group had shouted slogans in support of Öcalan and the PKK. He had been arrested on the spot. He also admitted that he had written “Long live leader Apo” on a banner which had been hung from a bridge on 26 April 2001. The police took samples of the applicant’s handwriting and sent it to the police laboratory for examination. 15.  On 1 June 2001 the İzmir Criminal Police Laboratory issued a report after comparing the applicant’s handwriting to that on the banner. It concluded that although certain characteristics of the applicant’s handwriting bore similarities to the handwriting on the banner, it could not be established whether or not the writing on the banner was in fact his. 16.  At 11.45 p.m. on 1 June 2001 the applicant was again examined by a doctor, who stated that there were no traces of ill-treatment on his body. 17.  On the same day, the applicant was brought before the public prosecutor and subsequently the investigating judge. Before the public prosecutor, he explained that he was not a member of any political party, but had taken part in certain activities of HADEP. He denied fabricating an illegal banner or participating in the demonstration on 29 May 2001. He stated that he was in the Doğanlar neighbourhood to visit a friend when he was arrested by the police. The applicant also made a statement to the investigating judge, in which he retracted his statement to the police, alleging that it had been extracted under duress. He claimed that he had been beaten and insulted while in police custody. He again denied engaging in any illegal activity and explained that on 29 May 2001 he had gone to the Doğanlar neighbourhood to visit a friend and had not been part of the group shouting slogans. After the questioning was over, the investigating judge remanded the applicant in custody, having regard to the nature of the offence of which he was accused and the state of the evidence. The applicant was then allowed to have access to a lawyer. 18.  On 11 July 2001 the public prosecutor at the İzmir State Security Court filed an indictment with that court accusing the applicant and eight other accused of aiding and abetting the PKK, an offence under Article 169 of the Criminal Code and section 5 of the Prevention of Terrorism Act (Law no. 3713). 19.  On 16 July 2001 the State Security Court held a preparatory hearing. It decided that the applicant’s detention on remand should be continued and that the accused be invited to prepare their defence submissions. 20.  On 28 August 2001 the State Security Court held its first hearing, in the presence of the applicant and his lawyer. It heard evidence from the applicant in person, who denied the charges against him. The applicant also rejected the police statement, alleging that it had been extracted from him under duress. He explained that while he was in custody, police officers had ordered him to copy the words from a banner. He also stated that he had witnessed the events that had taken place on 29 May 2001; however, he had not taken part in the demonstration as alleged. Instead, he had been in the neighbourhood to visit a friend named Özcan. He also denied hanging an illegal banner from a bridge on 26 April 2001. 21.  At the next hearing, which was held on 25 October 2001, the applicant and his lawyer were both present. The court also heard from other accused persons, all of whom denied having participated in the illegal demonstration on 29 May 2001 and retracted statements they had made previously. The prosecution then called for the applicant to be sentenced pursuant to Article 169 of the Criminal Code and the applicant’s lawyer requested time to submit the applicant’s defence submissions. 22.  On 5 December 2001 the applicant made his defence submissions. He denied the charges against him and requested his release. On the same day, the İzmir State Security Court delivered its judgment. It acquitted five of the accused and convicted the applicant and three other accused as charged. It sentenced the applicant to four years and six months’ imprisonment, which was reduced to two and a half years as the applicant had been a minor at the time of the offence. 23.  In convicting the applicant, the State Security Court had regard to the applicant’s statements to the police, the public prosecutor and the investigating judge respectively. It also took into consideration his co-defendants’ evidence before the public prosecutor that the applicant had urged them to participate in the demonstration of 29 May 2001. The court noted that the co-defendants had also given evidence that the applicant had been in charge of organising the demonstration. It further took note of the expert report comparing the applicant’s handwriting to that on the banner and of the fact that, according to the police report on the arrest, the applicant had been among the demonstrators. It concluded:
“... in view of these material facts, the court does not accept the applicant’s denial and finds that his confession to the police is substantiated.” 24.  On 2 January 2002 the applicant’s lawyer appealed against the judgment of the İzmir State Security Court. In her notice of appeal, she alleged a breach of Articles 5 and 6 of the Convention, arguing that the proceedings before the first-instance court had been unfair and that the court had failed to assess the evidence properly. 25.  On 27 March 2002 the Principal Public Prosecutor at the Court of Cassation lodged a written opinion with the Ninth Division of the Court of Cassation in which he submitted that the Division should uphold the judgment of the İzmir State Security Court. This opinion was not served on the applicant or his representative. 26.  On 10 June 2002 the Ninth Division of the Court of Cassation, upholding the İzmir State Security Court’s reasoning and assessment of the evidence, dismissed the applicant’s appeal.