Reference of questions of law
Section 295(3) · 1999 Constitution (2004 edition)
What Constitution says
(3) Where any question as to the interpretation or application of this constitution arises in any proceedings in the Court of Appeal and the court is of opinion that the question involves a substantial question of law, the court may, and shall if any party to the proceedings so requests, refer the question to the Supreme Court which shall give its decision upon the question and give such directions to the Court of Appeal as it deems appropriate.
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 121–122. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections