FIRST VOLUME
General Provisions
FIRST CHAPTER
Basic Principles, Definitions and Field Of Application
FIRST SECTION
Basic Principles and Definitions
Binding nature of the Law
ARTICLE 4- (1) Ignorance of the criminal laws may not be an excuse.
(2) However, a person who commits an offence through an inevitable mistake due to his ignorance of the law may not be kept criminally responsible from such offence.
Mistake of law - national proceedings
EDIT.