Do you know that a person shall not be punished for an act which by reason of ignorance or mistake of fact in good faith, that person believes to be lawful? In other words, while ignorance of the law is no defence, ignorance of fact is a complete defence. Section 29 of Criminal Offences Act, 1960 (Act 29) and Nyameneba & Others vrs The State (1965) GLR 723, CA.