1976 United Nations — Treaty Series • Nations Unies — Recueil des Traités 175 Crime of Genocide. 1 This penalty can only be carried out pursuant to a final judge ment rendered by a competent court. 3. When deprivation of life constitutes the crime of genocide, it is understood that nothing in this article shall authorize any State Party to the present Covenant to derogate in any way from any obligation assumed under the provisions of the Con vention on the Prevention and Punishment of the Crime of Genocide. 4. Anyone sentenced to death shall have the right to seek pardon or commuta tion of the sentence. Amnesty, pardon or commutation of the sentence of death may be granted in all cases. 5. Sentence of death shall not be imposed for crimes committed by persons below eighteen years of age and shall not be carried out on pregnant women. 6. Nothing in this article shall be invoked to delay or to prevent the abolition of capital punishment by any State Party to the present Covenant. Article 7. No one shall be subjected to torture or to cruel, inhuman or degrading treatment or punishment. In particular, no one shall be subjected without his free consent to medical or scientific experimentation. Article 8. 1. No one shall be held in slavery; slavery and the slave-trade in all their forms shall be prohibited. 2. No one shall be held in servitude. 3. (a) No one shall be required to perform forced or compulsory labour, (o) Paragraph 3 (a) shall not be held to preclude, in countries where imprison ment with hard labour may be imposed as a punishment for a crime, the performance of hard labour in pursuance of a sentence to such punishment by a competent court. (c) For the purpose of this paragraph the term "forced or compulsory labour" shall not include: (i) Any work or service, not referred to in sub-paragraph (b), normally required of a person who is under detention in consequence of a lawful order of a court, or of a person during conditional release from such detention; (ii) Any service of a military character and, in countries where conscientious objec tion is recognized, any national service required by law of conscientious objec tors; (iii) Any service exacted in cases of emergency or calamity threatening the life or well-being of the community; (iv) Any work or service which forms part of normal civil obligations. Article 9. 1. Everyone has the right to liberty and security of person. No one shall be subjected to arbitrary arrest or detention. No one shall be deprived of his liberty except on such grounds and in accordance with such procedure as are estab lished by law. 2. Anyone who is arrested shall be informed, at the time of arrest, of the reasons for his arrest and shall be promptly informed of any charges against him. 3. Anyone arrested or detained on a criminal charge shall be brought promptly before a judge or other officer authorized by law to exercise judicial power and shall be entitled to trial within a reasonable time or to release. It shall not be the general rule that persons awaiting trial shall be detained in custody, but release may be sub ject to guarantees to appear for trial, at any other stage of the judicial proceedings, and, should occasion arise, for execution of the judgement. 1 United Nations, Treaty Series, vol. 78, p. 277. Vol. 999,1-14668