Section 80: Power to conduct investigation.

(1) Subject to the provisions of this Act, a House of Assembly shall have power by resolution published in its journal or in the Gazette of the Government of the State, to direct or cause to be directed an inquiry or investigation into-
(a) any matter or thing with respect to which it has power to make laws" and
(b) the conduct of affairs of any person, authority, ministry or government department charged, or intended to be charged, with the duty of or responsibility for-
(i) executing or administering laws enacted by that House of Assembly and
(ii) disbursing or administering moneys appropriated or to be appropriated by such House.
(2) The powers conferred on the House of Assembly under the provisions of this section are exercisable only for the purpose of enabling the House-
(a) to make laws with respect to any matter within its legislative competence and to correct any defects in existing laws; and
(b) to prevent and expose corruption, inefficiency or waste in the execution or administration of laws within its legislative competence and in the disbursement or administration of funds appropriated by it.
(3) For the purposes of any investigation under subsection (1) of this section and subject to the provisions thereof, a House of Assembly or committee appointed in accordance with section 14 of this Act shall have power-
(a) to procure all such evidence, written or oral, direct or circumstantial as it may think necessary or desirable, and to examine all persons as witnesses whose evidence may be material or relevant to the subject matter;
(b) to require such evidence to be given on oath ;
(c) to summon any person in Nigeria to give evidence at any place or to produce any document or other thing in his possession or under his control, and to examine him as a witness and require him to produce any document or other thing in his possession or under his control, subject to all just exceptions; and
(d)
to issue a warrant to compel the attendance of any person who, after having been summoned to attend, fails, refuses or neglects to do so and does not explain such failure, refusal or neglect to the satisfaction of the House of Assembly or the committee, and to order him to pay all costs which may have been occasioned in compelling his attendance or by reason of his failure, refusal or neglect to obey the summons, and also to impose such fine as may be prescribed by law for any such failure, refusal or neglect; and any fine so imposed shall be recoverable in the same manner as a fine imposed by a court of law.
(4) A summons or warrant issued under this section may be served or executed by any member of the Nigeria Police Force or by any person authorised in that behalf by the Speaker of the House of Assembly of the State.