(1) Subject to the provisions of this Constitution, the Court of Appeal shall, to the exclusion of any other court of Law in Nigeria, have original jurisdiction to hear and determine any question as to whether -
(a) any person has been validity elected to the office of President or Vice-President under this Constitution; or
(b) the term of office of the President or Vice-President has ceased; or
(c) the office of President or Vice-President has become vacant.
(2) In the hearing and determine of an election petition under paragraph (a) of subsection (1) of this section, the Court of Appeal shall be duly constituted if it consists of at least three Justices of the Court Appeal.
Section 239 of the Constitution of the Federal Republic of Nigeria