Public prosecutions
Section 174(1) · 1999 Constitution (2004 edition)
What Constitution says
(1) The Attorney-General of the Federation shall have power - (a) to institute and undertake criminal proceedings against any person before any court of law in Nigeria, other than a court-martial, in respect of any offence created by or under any Act of the National Assembly; (b) to take over and continue any such criminal proceedings that may have been instituted by any other authority or person; and (c) to discontinue at any stage before judgement is delivered any such criminal proceedings instituted or undertaken by him or any other authority or person.
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 82. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections