The venerable old rule is that ignorance of the law is no excuse, minted in the Latin maxim ignorantia legis neminem excusat
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.
The American Law Institute's Model Penal Code (MPC) provides for three narrow exceptions to the general rule of ignorantia legis neminem excusat.
Prior to 1952, German criminal law adhered to the principle of 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.