However, Gibson believed that while this is true to some extent, the power of judicial review violates the Constitution's own rules established for the judiciary. Gibson says: “But it has been emphatically said that it is the business of the judiciary to determine and pronounce what the law is and that this necessarily involves an examination of the Constitution. It's true: but to what extent? Although the Constitution grants courts specific powers, Gibson makes his point by asserting that it does not specify the extent of those powers.