(a) controversies between Canada and the Province;

(b) controversies between the Province and any other Province of Canada that has passed an Act similar to this;

(c) suits, actions or proceedings in which the parties by their pleadings raise the question of the validity of an Act of the Parliament of Canada or of an Act of the Legislature of the Province, and, when in the opinion of The Court of King’s Bench of New Brunswick the question is material, The Court of King’s Bench of New Brunswick shall at the request of the parties, and may without their request, order the case to be removed to the Supreme Court of Canada in order that the question may be decided.