In relation to the burden of proof, the long-established principle of onus probandi applies, which simply means that he who asserts must prove. In general terms, the burden of proof lies on the party asserting that a particular fact exists. However, the determination of who bears that burden is not always straightforward. It must be clarified that, the reference to the Plaintiff bearing the burden of proof does not merely refer to the party who commenced the action. Rather, it refers to the party advancing a particular proposition of fact or law. Consequently, the burden of proof may shift depending on the nature of the allegation made. In particular, the burden rests on the Defendant when it seeks to rely on a set of facts that are not ordinarily part of the Plaintiff’s case, and which are raised to support its own position.