92 the conduct of convicts serving freedom-restricting sentences and rehabilitate them to be righteous members of the community, which thereby the Law has transcended penalty purposes to materialize in reform and rehabilitation, mindful of public and private deterrence in conjunction with modern criminal policies. Having classified reform and rehabilitation institutions into key, local, special open and semi-open institutions, this Law provides for inmates' categorization and distribution according to the degree of crime committed and meanwhile mandates that depositing any person in a reform and rehabilitation institution should be upon a written order, signed and sealed, by the Public Prosecution. It forbids that the subject convict be retained after the expiry of the period specified in the order. Within each institution, the Law requires that inmates be divided, in terms of treatment or subsistence, into two fully-separated categories; the first includes the provisionally detained, traffic crime and sinful offence convicts, sentenced elderly people who are past 60 years in age and convicts who are under 21. The second category covers the rest of convicts. The Law mandates as well that provisionally detained inmates are to be accommodated in separate places in the given institution. They are also permitted to stay in paid furnished rooms. The Law permits that inmates buy or meet their needs from outside the institution unless otherwise indicated as opposed to health or security contingencies. It decides that if the sentence period the subject convict is serving in the institution exceeded four years, he will have to pass through a transitional period before his release to observe progressive ease of constraints for his eventual reintegration in the society. The Law permits sheltering pregnant inmates in social care institutions in lieu of reform and rehabilitation institutions upon a decision by the doctor concerned with regard to food, activity and sleep, until she gives birth and for 40 days after delivery and the