91 (2) Before a judge, other than the Chief Justice or Deputy Chief Justice, assumes office, he or she must take, before the Chief Justice or the next-most senior judge available, the judicial oath in the form set out in the Third Schedule. (3) The Acts of Parliament under which magistrates and other members of the judiciary, other than judges, are appointed must prescribe the oath to be taken by those members of the judiciary. 8.25 Tenure of office of judges (1) Judges of the Constitutional Court are appointed for a non-renewable term of not more than fifteen years, but— (a) they must retire earlier if they reach the age of seventy years; and (b) after the completion of their term, they may be appointed as judges of the Supreme Court or the High Court, at their option, if they are eligible for such appointment. (2) Judges of the Supreme Court and the High Court hold office from the date of their assumption of office until they reach the age of seventy years, when they must retire. (3) A person may be appointed as a judge of the Supreme Court or the High Court for a fixed term, but if a person is so appointed, other than in an acting capacity, he or she ceases to be a judge on reaching the age of seventy years even if the term of his or her appointment has not expired; (4) Even though a judge has resigned or reached the age of seventy years or, in the case of a judge of the Constitutional Court or a judge referred to in subsection (3), reached the end of his or her term of office, the judge may continue to sit as a judge for the purpose of dealing with any proceedings commenced before him or her while he or she was a judge. (5) A judge may resign from his or her office at any time by written notice to the President given through the Judicial Service Commission. (6) The office of a judge must not be abolished during his or her tenure of office. 8.26 Removal of judges from office (1) A judge may be removed from office only for— (a) inability to perform the functions of his or her office, due to mental or physical incapacity; (b) gross incompetence; or (c) gross misconduct; and a judge cannot be removed from office except in accordance with this section. (2) If the President considers that the question of removing the Chief Justice from office ought to be investigated, the President must appoint a tribunal to inquire into the matter. (3) If the Judicial Service Commission advises the President that the question of removing any judge, including the Chief Justice, from office ought to be investigated, the President must appoint a tribunal to inquire into the matter.