Public opinion is not a valid ground for judicial review of administrative action. Judicial review is based on legal principles and focuses on whether the administrative action is: Legal: Consistent with the relevant laws and regulations. Rational: Based on reason and evidence, not arbitrary or capricious. Proportionate: The action must not be excessive or disproportionate to the objective it seeks to achieve. Therefore, while legality, irrationality, and proportionality are valid grounds for judicial review, public opinion is not.