Article 10 1. All persons deprived of their liberty shall be treated with humanity and with respect for the inherent dignity of the human person. 2. (a) Accused persons shall, save in exceptional circumstances, be segregated from convicted persons and shall be subject to separate treatment appropriate to their status as unconvicted persons; 2. (b) Accused juvenile persons shall be separated from adults and brought as speedily as possible for adjudication. 3. The penitentiary system shall comprise treatment of prisoners the essential aim of which shall be their reformation and social rehabilitation. Juvenile offenders shall be segregated from adults and be accorded treatment appropriate to their age and legal status. Article 11 No one shall be imprisoned merely on the ground of inability to fulfil a contractual obligation. Article 12 1. Everyone lawfully within the territory of a State shall, within that territory, have the right to liberty of movement and freedom to choose his residence. 2. Everyone shall be free to leave any country, including his own. 3. The above-mentioned rights shall not be subject to any restrictions except those which are provided by law, are necessary to protect national security, public order (ordre public), public health or morals or the rights and freedoms of others, and are consistent with the other rights recognized in the present Covenant. 4. No one shall be arbitrarily deprived of the right to enter his own country. Article 13 An alien lawfully in the territory of a State Party to the present Covenant may be expelled therefrom only in pursuance of a decision 27