Related Rule
Azerbaijan
Practice Relating to Rule 101. The Principle of Legality
Azerbaijan’s Criminal Code (1999), as amended to 2007, states:
The criminality and punishment of a deed (action or inaction) shall be determined by the criminal law that was operative during commitment of this deed (action or inaction). No one shall be applied to criminal liability for a deed which was not admitted as a crime at the time of committing it. 
Azerbaijan, Criminal Code, 1999, as amended to Law 522-11QD dated 25 December 2007, Article 10.1.
In 2007, in its third periodic report to the Human Rights Committee, Azerbaijan stated:
Under the provisions of article 10 of the Criminal Code of the Republic of Azerbaijan, the criminality of a given act and the penalties which it incurs are determined by the criminal law in force at the time the act was committed. No one may be held criminally responsible for an act which was not recognized as an offence at the time of its perpetration. 
Azerbaijan, Third periodic report to the Human Rights Committee, 10 December 2007, UN Doc. CCPR/C/AZE/3, submitted 4 October 2007, § 413.