the separation of accused persons from convicted persons is effected and explain how the treatment of accused persons differs from that of convicted persons. 10. As to article 10, paragraph 3, which concerns convicted persons, the Committee wishes to have detailed information on the operation of the penitentiary system of the State party. No penitentiary system should be only retributory; it should essentially seek the reformation and social rehabilitation of the prisoner. States parties are invited to specify whether they have a system to provide assistance after release and to give information as to its success. 11. In a number of cases, the information furnished by the State party contains no specific reference either to legislative or administrative provisions or to practical measures to ensure the re-education of convicted persons. The Committee requests specific information concerning the measures taken to provide teaching, education and re-education, vocational guidance and training and also concerning work programmes for prisoners inside the penitentiary establishment as well as outside. 12. In order to determine whether the principle set forth in article 10, paragraph 3, is being fully respected, the Committee also requests information on the specific measures applied during detention, e.g., how convicted persons are dealt with individually and how they are categorized, the disciplinary system, solitary confinement and high-security detention and the conditions under which contacts are ensured with the outside world (family, lawyer, social and medical services, non-governmental organizations). 13. Moreover, the Committee notes that in the reports of some States parties no information has been provided concerning the treatment accorded to accused juvenile persons and juvenile offenders. Article 10, paragraph 2 (b), provides that accused juvenile persons shall be separated from adults. The information given in reports shows that some States parties are not paying the necessary attention to the fact that this is a mandatory provision of the Covenant, The text also provides that cases involving juveniles must be considered as quickly as possible. Reports should specify the measures taken by States parties to give effect to that provision, Lastlyr under article 10, paragraph 3, juvenile offenders shall be segregated from adults and be accorded treatment appropriate to their age and legal status in so far as conditions of detention are concerned, such as shorter working hours and contact with relatives, with the aim of furthering their reformation and rehabilitation. Article 10 does not indicate any limits of juvenile age. While this is to be determined by each State party in the light of relevant social, cultural and other conditions, the Committee is of the opinion that article 6, paragraph 5, suggests that all persons under the age of 18 should be treated as juveniles, at least in matters relating to criminal justice. States should give relevant information about the age groups of persons treated as juveniles. In that regard. States parties are invited to indicate whether they are applying the United Nations Standard Minimum Rules for the Administration of Juvenile Justice, known as the Beijing Rules (1987). -197-