What determines the constitutionality of the law?

The constitutionality of a law is determined by its alignment with the provisions and principles outlined in the constitution of a given jurisdiction. Courts, particularly supreme or constitutional courts, assess whether a law infringes on constitutional rights or exceeds the powers granted to legislative bodies. Judicial review is the mechanism through which courts evaluate laws, interpreting the constitution to ensure that laws do not violate its fundamental principles. Ultimately, a law may be declared unconstitutional if it conflicts with the constitution's explicit text or underlying values.