8.  The applicant was born in 1938 and lives in Vienna. He has spent about twenty-eight years of his life in prison. During his prison terms he worked for lengthy periods in the prison kitchen or the prison bakery. As a working prisoner the applicant was not affiliated to the old-age pension system under the General Social Security Act. However, from 1 January 1994 he was affiliated to the unemployment insurance scheme in respect of periods worked in prison. 9.  On 8 February 1999 the applicant filed an application for an early retirement pension with the Workers’ Pension Insurance Office (Pensionsversicherungsanstalt der Arbeiter – “the Pension Office”). 10.  By a decision of 8 March 1999, the Pension Office dismissed the application on the ground that the applicant had failed to accumulate 240 insurance months, the required minimum for an early retirement pension. A list of the applicant’s insurance periods, running from October 1953 to February 1999, was appended to the decision. According to the list, the applicant had accumulated only 117 insurance months. The list shows lengthy periods during which no contributions were made, in particular from May 1963 to May 1964, from July 1965 to September 1968, from June 1969 to January 1974, from April 1974 to March 1984, from June 1984 to May 1986 and from February 1987 to April 1994. Between May 1994 and February 1999 a number of months, during which the applicant received unemployment benefits or emergency relief payments under the Unemployment Insurance Act, were counted as substitute periods. 11.  Subsequently, the applicant brought an action against the Pension Office before the Vienna Labour and Social Court (Arbeits- und Sozialgericht). He submitted that he had been working for twenty-eight years in prison and that the number of months worked during that time should be counted as insurance months for the purpose of assessing his pension rights. 12.  On 4 April 2001 the Labour and Social Court dismissed the applicant’s claim. It confirmed that the applicant had not completed the required minimum number of insurance months. Referring to section 4(2) of the General Social Security Act, the court noted that prisoners performing obligatory work while serving their sentence were not affiliated to the compulsory social insurance scheme. According to the Supreme Court’s established case-law (judgment no. 10 ObS 66/90 of 27 February 1990 and judgment no. 10 ObS 52/99s of 16 March 1999), their work, corresponding to a legal obligation, differed from work performed by employees on the basis of an employment contract. The difference in treatment under social security law did not disclose any appearance of discrimination. 13.  The applicant, now assisted by counsel, appealed. He argued in particular that the wording of section 4(2) of the General Social Security Act did not distinguish between work on the basis of a legal obligation and work based on a contract. Moreover, he argued that the distinction was not objectively justified. Since 1993, prisoners who worked had been affiliated to the unemployment insurance scheme. In the applicant’s view, there was no reason not to affiliate them to the old-age pension system. 14.  On 24 October 2001 the Vienna Court of Appeal (Oberlandesgericht) dismissed the applicant’s appeal. It held that the Labour and Social Court had correctly applied the law. According to the Supreme Court’s established case-law, prisoners performing obligatory work were not to be treated as employees within the meaning of section 4(2) of the General Social Security Act and were therefore not affiliated to the compulsory social insurance scheme. The fact that, since the 1993 amendment to the Unemployment Insurance Act, prisoners were affiliated to the unemployment insurance scheme was not conclusive as regards the question of their affiliation to the old-age pension system. In essence, the applicant raised a question of legal or social policy. However, it was not for the courts but for the legislature to decide whether or not to change the provisions relating to the social insurance of prisoners. In that connection, the Court of Appeal noted that it did not share the applicant’s doubts regarding the possible unconstitutionality of working prisoners’ non-affiliation to the old-age pension scheme. 15.  On 12 February 2002 the Supreme Court (Oberster Gerichtshof) dismissed an appeal on points of law by the applicant. Its judgment was served on the applicant on 6 May 2002. 16.  On 29 January 2004 the applicant completed his last prison term. Subsequently, he received unemployment benefits until 29 October 2004 and, upon their expiry, emergency relief payments (Notstandshilfe). According to his counsel’s submissions at the hearing, the applicant currently receives some 720 euros (EUR) per month (composed of EUR 15.77 per day plus EUR 167 per month in emergency relief payments and EUR 87 as an allowance towards his rent expenses).