89 (g) Accountability and Transparency Commission; (h) Public Service Commission; (i) Constitutional Offices Commission; and (j) any tribunal or medical board established or appointed under this Constitution to consider the question of removal from office of any person. (2) A commission, tribunal or board to which this section applies may by regulation make provision for regulating and facilitating the performance of its functions. (3) A decision of a commission, tribunal or board to which this section applies requires the concurrence of a majority of its members and the commission, tribunal or board to which this section applies may act despite the absence of a member but, if, in a particular case, a vote is taken to decide a question and the votes cast are equally divided, the person presiding must exercise a casting vote. (4) Subject to this section, a commission, tribunal or board to which this section applies may regulate its own procedure. (5) In the performance of its functions or the exercise of its powers, a commission, tribunal or board to which this section applies is not subject to the direction or control of any other person or authority, except as otherwise provided by this Constitution. (6) Nothing in subsection (5) limits the responsibility of the Government for the structure of the State service, nor the Government’s general policy responsibility for the management of the State service. (7) In addition to the functions conferred on it by or under this Constitution, a commission, tribunal or board to which this section applies has such powers and other functions (if any) as are prescribed by written law. (8) The validity of the transaction of business of a commission, tribunal or board to which this section applies is not affected if a person who was not entitled to do so took part in the proceedings. (9) A commission, tribunal or board to which this section applies has the same powers as the High Court in respect of attendance and examination of witnesses (including the administration of oaths and the examination of witnesses abroad) and in respect of production of documents.