Rule of Law implies that everyone is subject to and accountable under the law, including government officials. Natural justice (principles like audi alteram partem - hear the other side, and nemo judex in causa sua - no one should be a judge in their own case) and judicial equality (equal treatment by courts) are fundamental aspects of ensuring fairness within the legal system under the Rule of Law. Fair play is a broader ethical principle closely associated with justice and often used interchangeably with aspects of natural justice.