Constitution of Kenya
140. Questions as to validity of presidential election
(1) A person may file a petition in the Supreme Court to challenge the election of the President-elect within seven days after the date of the declaration of the results of the presidential election.
(2) Within fourteen days after the filing of a petition under clause (1), the Supreme Court shall hear and determine the petition and its decision shall be final.
(3) If the Supreme Court determines the election of the President- elect to be invalid, a fresh election shall be held within sixty days after the determination.