Non-statutory laws refer to legal rules that are not expressly created by a legislative body. Such laws are developed by courts, administrative agencies, and other governing bodies interpreting the legal framework established by statutes. Other synonyms for non-statutory laws are common law, judge-made laws, precedent-based laws, and customary laws. Common law is a system of laws that is based on court decisions rather than statutes. Judge-made laws are legal principles established by judges through their interpretation of statutes and prior court decisions. Precedent-based laws refer to legal opinions and decisions that have been set as precedents by higher courts. Customary laws are practices and behaviors that are accepted by a community or society and enforced through social norms rather than a legal framework.