De fide et officio judicis non recipitur quaestio; sed de scientia

De fide et officio judicis non recipitur quaestio; sed de scientia, sive error sit juris sive facti. Of the credit and duty of a judge, no question can arise; but it is otherwise respecting his knowledge, whether he be mistaken as to the law or fact. Bacon's max. Reg. 17.

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