Jurisdiction of state courts in respect of federal causes
Section 286(3) · 1999 Constitution (2004 edition)
What Constitution says
(3) In this section, unless the context otherwise requires - " causes" includes matter; "Federal cause" means civil or criminal cause relating to provisions of the National Assembly has power to make laws; and "Federal offence" means an offence contrary to the provisions of Act of the National Assembly or any law having effect as if so enacted.
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 118–119. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections