the judiciary is a group of judges who resolve people's disputes and determine whether people who are charged with crimes are guilty. in some jurisdictions the judge does not find guilt or innocence but instead directs a jury, how to interpret facts from a legal perspective, but the jury determines the facts based on evidence presented to them and finds the guilt or innocences of the charged person. most countries of common law and civil law systems have a system of appeals courts, up to a supreme authority such as the supreme court or the high court. the highest courts usually have the power to remove laws that are unconstitutional (which go against the constitution).