Part I Constitution of the Court of Judicature of Northern Ireland
6 Judges of one court empowered to assist another.
(1)
A Lord Justice of Appeal may at any time at the request of the Lord Chief Justice sit and act as a judge of the High Court.
(2)
A judge of the High Court shall, if requested to do so by the Lord Chief Justice, sit and act as a judge of the Court of Appeal when that court is exercising jurisdiction other than jurisdiction in a criminal cause or matter.