The King can do no wrong definition
The King can do no wrong. . . . means, in the first place, that by no proceeding known to the law can the King be made personally responsible for any act done by him; if (to give an absurd example) the Queen were herself to shoot the Premier through the head, no court in England could take cognisance of the act. The maxim means, in the second place, that no one can plead the orders of the Crown or indeed of any superior officer in defence of any act not otherwise justifiable by law” (A. V. Dicey, Introduction to the Study of the Law of the Constitution 24 [5th ed. 1897]).