This document discusses the sources of law. It identifies the primary sources of law as legislation, treaties, precedents, and customs. Legislation refers to laws made by the legislative body through a lawmaking process. Treaties are agreements between countries that become legally binding. Precedents are new legal principles established by the supreme court that provide guidance. Customs refer to longstanding traditions and practices of a society. The document also identifies secondary sources of law, such as historical and religious documents, expert opinions, and principles of equity and good conscience.