Related Rule
Croatia
Practice Relating to Rule 101. The Principle of Legality
Croatia’s Criminal Code (1997), as amended to 2006, states:
No one shall be punished, and no criminal sanction shall be applied, for conduct which did not constitute a criminal offence under a statute or international law at the time it was committed and for which the type and range of punishment by which the perpetrator can be punished has not been prescribed by statute. 
Croatia, Criminal Code, 1997, as amended to 2006, Article 2.
In 2007, in its second periodic report to the Human Rights Committee, Croatia stated that its Constitution provides that “no one shall be punished for an act which before its commission was not defined as a punishable offence by law or international law, nor may he or she be sentenced to a penalty which was not defined by law”. 
Croatia, Second periodic report to the Human Rights Committee, 2 December 2008, UN Doc. CCPR/C/HRV/2, submitted 28 November 2007, § 317.