(1) It shall be a defence (to be known and in this Act referred to as the "defence of truth") to a defamation action for the defendant to prove that the statement in respect of which the action was brought is true in all material respects.

(2) In a defamation action in respect of a statement containing 2 or more distinct allegations against the plaintiff, the defence of truth shall not fail by reason only of the truth of every allegation not being proved, if the words not proved to be true do not materially injure the plaintiff's reputation having regard to the truth of the remaining allegations.