The power of a court to examine the actions of the legislative, executive, and administrative branches of government and to determine whether such actions are consistent with the constitution is a fundamental principle. This authority allows courts to invalidate laws or executive actions that conflict with constitutional principles. A prime example of this in action is the Supreme Court case Marbury v. Madison (1803), which established the principle in the United States.
This concept serves as a crucial check on the power of the other branches of government, ensuring that they do not exceed their constitutional limitations. It safeguards individual rights and liberties by providing a mechanism to challenge laws or actions that may infringe upon them. Historically, it has been instrumental in shaping the interpretation of the Constitution and adapting it to evolving societal norms and values. The power allows the judiciary to act as a guardian of the constitution.