Perhaps the most anachronistic doctrine in Anglo-American public law is that of sovereign immunity. Under it, the State is placed in a privileged position of immunity from the principles of law which are binding upon the ordinary citizen, unless it expressly consents to be bound by such principles. In Anglo-American law the infallibility attributed to the King in the days when he was personally sovereign has been more recently recognized in the State, which the Crown now merely personifies. Thus, even today, and even in the American democracy, the basic principle of public law is that the King can do no wrong.
Estoppel and Crown Privilege in English Administrative Law,
Mich. L. Rev.
Available at: https://repository.law.umich.edu/mlr/vol55/iss1/3