GENERAL PART
Chapter Three
CRIMINAL OFFENCE
1. General provisions on Criminal Offence
Mistake of Law
(Error Iuris)
Article 29
(1) An act shall not be considered a criminal offence if it was done out of a compelling mistake of law.
(2) A compelling mistake of law exists where the perpetrator was not required or could not be aware that his act was prohibited.
(3) punishment of a perpetrator who was unaware that an act was prohibited, but could have or should have known, may be mitigated.
Mistake of law - national proceedings
EDIT.