What is the judicial review?

Judicial Review is the power of the courts to annul the acts of the executive and/or the legislative power where it finds them incompatible with a higher norm. Judicial review is an example of the functioning of separation of powers in a modern governmental system (where the judiciary is one of several branches of government). This principle is interpreted differently in different jurisdictions, which also have differing views on the different hierarchy of governmental norms. As a result, the procedure and scope of judicial review differs from country to country and state to state.