Ignorantia legis neminem excusat

Also found in: Idioms.

Ignorantia legis neminem excusat. Ignorance of fact may excuse, but not ignorance of law. 4 Bouv. Inst. n. 3828.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
The venerable old rule is that ignorance of the law is no excuse, minted in the Latin maxim ignorantia legis neminem excusat. (29) A.T.H.
Cottone warns that as the mens rea requirement withers when the quantity and complexity of laws increase, the doctrine of ignorantia legis neminem excusat -- ignorance of the law does not excuse -- becomes problematic.
The Anglo-American Approach: Ignorantia Legis Neminem Excusat B.
The approach of Anglo-American common law systems is based upon the principle of ignorantia legis neminem excusat, that is, "ignorance of the law is no excuse." (23) However, by refusing to acknowledge honest and reasonable mistakes of law, strict enforcement of the absolute liability theory endorsed by the Anglo-American systems has carried the potential of objectionable results.
Prior to 1952, German criminal law adhered to the principle of ignorantia legis neminem excusat. (39) However, like their Anglo-American counterparts, (40) German legal practitioners and theorists struggled with strict application of the ignorantia legis principle.
It is well known in the legal system the dictum "Ignorantia juris non excusat" (or ignorantia legis neminem excusat) - Latin for "ignorance of the law does not excuse" or "ignorance of the law excuses no one", but is ignorance of the current situation an excuse or we are doomed to pay for our ignorance or let's say our naivete?
Being a student of Political Science and law, having an engineering educational background, I have always read in various books of law and environment regarding the civilized nations of the world who firmly believe that "ignorance of the law does not excuse" or "ignorance of the law excuses no one" (Latin for it is: Ignorantia juris non excusat or ignorantia legis neminem excusat) and also that Eco is the core of sustainable living" but it is otherwise in Pakistan.
Nevertheless, "ignorance of the law excuses no one" (ignorantia legis neminem excusat).
This state of affair has impacted negatively and led to deterioration of legal and judicial education, he said, adding that there is a, therefore, greater ignorance of law and inability to apply the law, even though it is universally accepted that Ignorantia legis neminem excusat which means ignorance of law is no excuse.