Constitutional law refers to the body of law that interprets and applies the Constitution of a country, serving as the foundation for the legal framework within which governmental powers and individual rights are defined and protected. This area of law ensures that government actions adhere to the principles set out in the Constitution, addressing issues such as the separation of powers, federalism, and fundamental rights. The significance of constitutional law extends to legal research methods, as understanding this body of law is essential for analyzing case law and statutes that may derive from constitutional provisions.