Power to conduct investigations (House of Assembly)
Section 128(1)(b) · 1999 Constitution (2004 edition)
What Constitution says
(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.
This is the 1999 Constitution as published in 2004. Later amendments aren't included yet, so a section may have changed since.
Original source
Official Gazette · CFRN 1999 official PDF · printed page 65–66. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections