Nigeria

(1) There shall be established for each State of the Federation and the Federal Capital Territory, one or more election tribunals to be known as the National and State Houses of Assembly Election Tribunals which shall, to the exclusion of any Court or Tribunal, have original jurisdiction to hear and determine petitions as to whether
(a) any person has been validly elected as a member of the National Assembly; or
(b) any person has been validly elected as member of the House of Assembly of a State.
... (Sec. 285)

The Commission shall have power to –
(a) organise, undertake and supervise all elections to the offices of the President and Vice-President, the Governor and Deputy Governor of a State, and to the membership of the Senate, the House of Representatives and the House of Assembly of each State of the Federation;
(b) register political parties in accordance with the provisions of this Constitution and an Act of the National Assembly;
(c) monitor the organisation and operation of the political parties, including their finances, conventions, congresses and party primaries;
(d) arrange for the annual examination and auditing of the funds and accounts of political parties, and publish a report on such examination and audit for public information;
(e) arrange and conduct the registration of persons qualified to vote and prepare, maintain and revise the register of voters for the purpose of any election under this Constitution;
(f) monitor political campaigns and provide rules and regulations which shall govern the political parties;
(g) ensure that all Electoral Commissioners, Electoral and Returning Officers take and subscribe the Oath of Office prescribed by law;
(h) delegate any of its powers to any Resident Electoral Commissioner; and
(i) carry out such other functions as may be conferred upon it by an Act of the National Assembly. (Third Schedule, Sec. 15)

A person shall be qualified for election to the office of the President if –
(a) he is a citizen of Nigeria by birth;
(b) he has attained the age of thirty-five years;
(c) he is a member of a political party and is sponsored by that political party; and
(d) he has been educated up to at least School Certificate level or its equivalent. (Sec. 131)

A person shall be qualified for election to the office of the President if –
(a) he is a citizen of Nigeria by birth;
(b) he has attained the age of thirty-five years;
(c) he is a member of a political party and is sponsored by that political party; and
(d) he has been educated up to at least School Certificate level or its equivalent. (Sec. 131)

(1) In any election to which the foregoing provisions of this Part of this Chapter⁸ relate, a candidate for an election to the office of President shall not be deemed to be validly nominated unless he nominates another candidate as his associate from the same political party for his running for the office of President, who is to occupy the office of Vice-President and that candidate shall be deemed to have been duly elected to the office of Vice-President if the candidate for an election to the office of President who nominated him as such associate is duly elected as President in accordance with the provisions aforesaid.
(2) The provisions of this Part of this Chapter relating to qualification for election, tenure of office, disqualification, declaration of assets and liabilities and oaths of President shall apply in relation to the office of Vice-President as if references to President were references to Vice-President. (Sec. 142)

(1) There shall be such offices of Ministers of the Government of the Federation as may be established by the President.
(2) Any appointment to the office of Minister of the Government of the Federation shall, if the nomination of any person to such office is confirmed by the Senate, be made by the President.
Provided that no Ministerial nominee shall be confirmed by the Senate unless evidence of declaration of assets and liabilities of the nominee as prescribed in this Constitution is presented.
(3) Any appointment under subsection (2) of this section by the President shall be in conformity with the provisions of section 14(3) of this Constitution:
Provided that in giving effect to the provisions aforesaid the President shall appoint at least one Minister from each State, who shall be an indigene of such State.
(4) Where a member of the National Assembly or of a House of Assembly is appointed as Minister of the Government of the Federation, he shall be deemed to have resigned his membership of the National Assembly or of the House of Assembly on his taking the oath of office as Minister.
(5) No person shall be appointed as a Minister of the Government of the Federation unless he is qualified for election as a member of the House of Representatives.
… (Sec. 147)

(1) Subject to the provisions of section 66 of this Constitution, a person shall be qualified for election as a member of:
(a) the Senate, if he is a citizen of Nigeria and has attained the age of 35 years; and
(b) the House of Representatives, if he is a citizen of Nigeria and has attained the age of 25 years;
(2) A person shall be qualified for election under subsection (1) of this section if:
(a) he has been educated up to at least School Certificate level or its equivalent; and
(b) he is a member of a political party and is sponsored by that party. (Sec. 65)

(1) Subject to the provisions of this Constitution, every Senatorial district or Federal constituency established in accordance with the provisions of this Part of this Chapter⁹ shall return a member who shall be directly elected to the Senate or the House of Representatives in such manner as may be prescribed by an act of the National Assembly.
… (Sec. 77)