cpc S. 100 – To be “substantial”, a question of law must be debatable, not previously settled by the law of the land or any binding precedent, and must have a material bearing on the decision of the case and/or the rights of the parties before it, if answered either way – To be a question of law “involved in the case”, there must be first, a foundation for it laid in the pleadings, and the question should emerge from the sustainable findings of fact, arrived at by Courts of facts, and it must be necessary to decide that question of law for a just and proper decision of the case.
Nazir Mohamed v. J. Kamala, 2020 SCeJ 2299