A trial, often referred to as a test, is a formal examination of evidence in a legal setting. It typically involves a judge and sometimes a jury, who listen to arguments from both sides, the prosecution and the defense. The purpose of a trial is to determine the guilt or innocence of a defendant based on the presented facts and legal standards. In a broader context, a test can also refer to any method used to assess knowledge, skills, or performance. This can include academic exams, practical evaluations, or standardized assessments. Tests are designed to measure understanding and proficiency in a specific subject or area.