The Principle of Prohibition of the Retroactive Effect of Law: Implementation Peculiarities and Development Tendencies

The article is devoted to the comprehension, disclosure and description of the principle of prohibition of retroactivity of the law “Lex ad praeteriam non valet” in a systemic relationship with a number of principles of the rule of law. The authors note the relationship between the principle of prohibition of retroactive force of law and the principles of the rule of law and maintaining citizens’ confidence in the law and actions of the state, as well as such trends in its development as substantive stability and liberalization in law enforcement based on the sphere of legal regulation.