Right to personal liberty
Section 35(7)(b) · 1999 Constitution (2004 edition)
What Constitution says
(b) as invalidating any law by reason only that it authorises the detention for a period not exceeding three months of a member of the armed forces of the federation or a member of the Nigeria Police Force in execution of a sentence imposed by an officer of the armed forces of the Federation or of the Nigeria police force, in respect of an offence punishable by such detention of which he has been found guilty.
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 35–36. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections