48 Constitution of Kenya, 2010 (b) is entered into on or after the effective date. (2) Parliament shall enact legislation providing for the classes of transactions subject to ratification under clause (1). Legislation relating to the environment. 72. Parliament shall enact legislation to give full effect to the provisions of this Part. CHAPTER SIX—LEADERSHIP AND INTEGRITY Responsibilities of leadership. 73. (1) Authority assigned to a State officer— (a) is a public trust to be exercised in a manner that— (i) is consistent with the purposes and objects of this Constitution; (ii) demonstrates respect for the people; (iii) brings honour to the nation and dignity to the office; and (iv) promotes public confidence in the integrity of the office; and (b) vests in the State officer the responsibility to serve the people, rather than the power to rule them. (2) The guiding principles of leadership and integrity include— (a) selection on the basis of personal integrity, competence and suitability, or election in free and fair elections; (b) objectivity and impartiality in decision making, and in ensuring that decisions are not influenced by nepotism, favouritism, other improper motives or corrupt practices; (c) selfless service based solely on the public interest, demonstrated by— (i) honesty in the execution of public duties; and (ii) the declaration of any personal interest that may conflict with public duties; (d) accountability to the public for decisions and actions; and (e) discipline and commitment in service to the people.