Bishop's Law is a CANON of law that states that a bishop has the right to appoint a priest to a parish. This law was established in the Middle Ages and is still in effect today. It is based on the belief that bishops should have the authority to appoint priests to their dioceses, and it is still used in many countries around the world. CANON is a term used to refer to a body of laws or regulations, and Bishop's Law is one such CANON.