text: The arrangements for remission and parole in England and Wales and in Scotland have been the subject of the major reviews described in paragraphs 133 to 136 above. Parole is not available in Northern Ireland, but all inmates are eligible for half remission whatever their length of sentence, except as provided in paragraph 170 below. 170. In 1988, following growing concern about re-offending rates in Northern Ireland, particularly those of terrorist-type offences, the 50 per cent remission rate applied there (see para. 134 above) was reviewed. Section 22 of the Prevention of Terrorism (Temporary Provisions) Act 1989, which came into force on 16 March 1989, applied to persons convicted and sentenced to five years or more for a scheduled offence committed on or after that date. In addition, the Act requires a court to reactivate in its entirety the unexpired portion of any previous prison sentence should an offender be convicted of a scheduled offence attracting a sentence of imprisonment of more than one year. Such a period of reactivation must be served before commencement of an additional sentence, and does not attract remission. 171. The Government supports in principle the requirement under article 10, paragraphs 2 (b) and 3 of the Covenant that detained juveniles should be separated from adults. The Prison Service in England and Wales also recognizes a third group of offenders: young adults aged 17 to 20. It is in general the policy to accommodate all three groups separately. There are certain circumstances, however, where the mixing of offenders in these groups is considered appropriate, for example (in some instances) to provide a balanced institutional community, or to allow access to particular facilities. In the latter circumstances, steps are taken to ensure that inmates from different groups are kept apart as far as possible. CCPR/C/58/Add.6 page 39 Article 12 Entry 
analysis: The text appears to be discussing policies and regulations related to the criminal justice system, specifically regarding prison sentences, parole, and the treatment of different groups of offenders. It seems to be focused on the administration of justice rather than any specific economic or social issue.