Explanation:

It means a. mistake as to the existence or otherwise of any law. on a relevant subject as well as a mistake as to what the law is. A mistake or i gnorance oflaw, whether civil or .criminal is no defence in law, howsoever, genuine..itmightbe. If ignorance of law, were a defence, it would be open to an accused charged of a crime to allege' that he was not aware of the law on the point; and it would be quite impossible for the prosecution to prove that the accused was cognizant of the law in question.