The relevance of the topic lies in the fact that, despite the high standards established by Ukraine's criminal justice policy for the activities of law enforcement agencies, the situation in the field of criminal proceedings has several negative phenomena. Comparative legal analysis allows for the assessment of national criminal legislation development by comparing the norms of the Criminal Code of Ukraine and the criminal codes of other countries. Particularly, an examination of current legislation in post-Soviet and foreign countries leads to the conclusion that the institution of criminal responsibility is regulated differently in different countries and in different legal systems. The findings of this study could aid in the development of appropriate models for improving the national legal system and developing a systematic approach to the theory and practice of applying these norms.