Attorney-General of the Federation
Section 150 · 1999 Constitution (2004 edition)
What Constitution says
(1) There shall be an Attorney-General of the Federation who shall be the Chief Law Officer of the Federation and a Minister of the Government of the Federation. (2) A person shall not be qualified to hold or perform the functions of the office of the Attorney-General of the Federation unless he is qualified to practise as a legal practitioner in Nigeria and has been so qualified for not less than ten years.
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 75. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections