The document discusses the concept of natural justice, which refers to fairness in legal procedures. It provides three key principles of natural justice: 1) all parties must be given notice and opportunity to be heard, 2) the decision maker must be unbiased with no personal stake in the outcome, and 3) the decision must be based on evidence disclosed to all parties. It also gives examples from case law where these principles were violated, such as when one party was not allowed to present their case fully or the decision maker had prior involvement in the dispute. Natural justice aims to ensure fair and unbiased decision making through adherence to procedural fairness.