A trial refers to a formal examination in a court of law to determine the guilt or innocence of a person accused of a crime. It involves presenting evidence, arguments, and witness testimonies to a judge or jury, who then make a verdict. Trials are conducted to provide fairness, justice, and uphold the rule of law. They serve as a means to ensure that individuals are given a chance to defend themselves against accusations, and that the legal system operates transparently and impartially. Trials can be used for criminal, civil, or administrative cases and play a crucial role in maintaining order and resolving disputes.