make laws regulating the registration, functions and operation of political parties. (7) Any association aggrieved by a decision of the Political Parties Registration Commission under this section may appeal to the Supreme Court and the decision of the Court shall be final. (8) For the purposes of this section the expression— "association" includes any body of persons, corporate or incorporate, who agree to act together for any common purpose, or an association formed for any ethnic, social, cultural, occupational or religious purpose; and "political party" means any association registered as a political party as prescribed by subsection (5). Secret ballot. 36. At any public elections or referenda voting shall be by secret ballot. Referendum. 37. (1) In any referendum held pursuant to an Act of Parliament, every person who is entitled to vote in elections of Members of Parliament shall be entitled to vote at such referendum and no other person may so vote; and the issue in the referendum shall not be regarded as having been approved at that referendum unless it was so approved by the votes of not less than one-half of all such persons or by not less than two-thirds of all the valid votes cast. (2) The conduct of any referendum for the purposes of subsection (1) shall be under the general supervision of the Electoral Commission and the provisions of Section 38 of this Constitution shall apply in relation to the exercise by the Electoral Commission of its functions with respect to a referendum as they apply in relation to the exercise of its functions with respect to elections of Members of Parliament. (3) A Bill for an Act of Parliament under this Section shall not be submitted to the President for his assent unless it is accompanied by a certificate under the hand of the Speaker (or if the Speaker is for any reason unable to exercise the functions of this office, the Deputy Speaker) that the provisions of subsections (1), (2) and (3) of section 106 and, where appropriate, the provisions of subsections (1) and (2) have been complied with. Constituencies and elections. 38. (1) Sierra Leone shall be divided into such constituencies for the purpose of electing the Members of Parliament referred to in paragraph (b) of subsection (1) of section 74 of this Constitution as the Electoral Commission, acting with the approval of Parliament signified by resolution of Parliament, may prescribe. (2) Every constituency established under this section shall return one Member of Parliament. (3) The boundaries of each constituency shall be such that the number of inhabitants thereof is as nearly equal to the population quota as is reasonably practicable. Provided that the number of inhabitants of such a constituency may be greater or less than the population quota in order to take account of means of communications, geographical features, density of population, the distribution of different communities, the areas and boundaries of the Chiefdoms and other administrative or traditional areas. (4) The Electoral Commission shall review the division of Sierra Leone into constituencies at intervals of not less than five and not more than seven years, and may alter the constituencies in accordance with the provisions of this section to such extent as it may consider desirable in the light of the review: Provided that the Commission may at any time carry out such a review and alter the constituencies in accordance with the provisions of this section to such extent as it considers necessary in consequence of any alteration in the number of Members of Parliament referred to in paragraph (b) of subsection (1) of section 74 by reason of the holding of a census of the population of Sierra Leone in pursuance of an Act of Parliament. (5) Where the boundaries of any constituency are altered in accordance with the provisions of this section, that alteration shall come into effect upon the next dissolution of Parliament after the alteration has been approved by 25