Legal precedents are previous court decisions that serve as a guide for judges in future cases. When a court makes a ruling, that decision can influence how similar cases are handled later. This principle is known as stare decisis, which means "to stand by things decided." It helps ensure consistency and predictability in the law. Precedents can come from various levels of courts, including supreme courts and appellate courts. Lower courts are generally required to follow the precedents set by higher courts within the same jurisdiction. This system helps maintain a stable legal framework and allows individuals to understand their rights and obligations under the law.