Right to freedom of expression and the press
Section 39(3)(b) · 1999 Constitution (2004 edition)
What Constitution says
(b) imposing restrictions upon persons holding office under the Government of the Federation or of a State, members of the armed forces of the Federation or members of the Nigeria Police Force or other Government security services or agencies established by law.
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 38. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections