113 Article 15 Each State Party shall ensure that any statement which is established to have been made as a result of torture shall not be invoked as evidence in any proceedings, except against a person accused of torture as evidence that the statement was made. Article 16 1. Each State Party shall undertake to prevent in any territory under its jurisdiction other acts of cruel, inhuman or degrading treatment or punishment which do not amount to torture as defined in article I, when such acts are committed by or at the instigation of or with the consent or acquiescence of a public official or other person acting in an official capacity. In particular, the obligations contained in articles 10, 11, 12 and 13 shall apply with the substitution for references to torture of references to other forms of cruel, inhuman or degrading treatment or punishment. 2. The provisions of this Convention are without prejudice to the provisions of any other international instrument or national law which prohibits cruel, inhuman or degrading treatment or punishment or which relates to extradition or expulsion. PART II Article 17 1. There shall be established a Committee against Torture (hereinafter referred to as the Committee) which shall carry out the functions hereinafter provided. The Committee shall consist of ten experts of high moral standing and recognized competence in the field of human rights, who shall serve in their personal capacity. The experts shall be elected by the States Parties, consideration being given to equitable geographical distribution and to the usefulness of the participation of some persons having legal experience. 2. The members of the Committee shall be elected by secret ballot from a list of persons nominated by States Parties. Each State Party may nominate one person from among its own nationals. States Parties shall bear in mind the usefulness of nominating persons who are also members of the Human Rights Committee established under the International Covenant on Civil and Political Rights and who are willing to serve on the Committee against Torture. 3. Elections of the members of the Committee shall be held at biennial meetings of States Parties convened by the Secretary-General of the United Nations. At those meetings, for which two thirds of the States Parties shall constitute a quorum, the persons elected to the Committee shall be those who obtain the largest number of votes and an absolute majority of the votes of the representatives of States Parties present and voting. 4. The initial election shall be held no later than six months after the date of the entry into force of this Convention. At least four months before the date of each election, the Secretary-General of the United Nations shall address a letter to the States Parties inviting them to submit their nominations within three months. The Secretary-General shall prepare a list in alphabetical order of all persons thus nominated, indicating the States Parties which have nominated them, and shall submit it to the States Parties.