Complexity as a condition for the effectiveness of legislation in the field of crime prevention

The relevance of scientific research was determined by the fragmentary knowledge of the problem of complexity in the field of legal science in general and in criminology in particular. The expansion of epistemological boundaries of complexity was proposed by developing a criminological system and highlighting its structure. The paper examined the inter-system interaction of various branches of legislation designed to provide legal protection and regulation of social relations in the field of preventing criminal illegality. The research methodology was based on a systematic approach, complex systems theory, supplemented by hermeneutic methods and other special legal research methods. The purpose of the study was to understand the external (classical, traditional) manifestation of complexity through the inter-systemic links between different areas of legislation in the field of preventing criminal wrongdoing. The general orientation and practical possibilities of the norms of various branches of anti-criminal legislation of Ukraine in preventing the phenomenon of criminal illegality were revealed. The preventive potential of the criminal, criminal procedural, criminal executive, administrative, and administrative procedural legislation of Ukraine, including during the legal regime of martial law in our state, was clarified. The incompleteness of Ukraine’s criminal law was highlighted through the prism of international and European legislation, which sets standards in the field of crime prevention. The necessity of observing the intersystem interaction of these branches with criminological legislation as a complex of the criminological system was determined. It has been substantiated that the effectiveness of Ukrainian legislation in the field of preventing criminal illegality correlates with the degree of external and internal regulatory and legal expression of complexity. The practical significance of the study was to use the idea of complexity of anti-criminal legislation to increase the effectiveness of the entire system of preventing criminal offences, and to transfer the idea of external and internal expression of complexity to the entire sphere of law enforcement