Objective: The aim of the article is in examining the characteristics of the relevant samples of successful experience of the developed countries in the sphere of combating bioterrorism. Method: The following methods were used by the authors in evaluating the efficiency of the research which involved: historical, analysis as well as bibliographic. Results: The current threats posed by such a phenomenon as bio-terrorism are identified and characterized, as well as successful international examples of its overcoming are analyzed. The level of danger of bio-terrorism has been established, as well as the negative consequences it causes. Cases of real use of biological weapons in different periods of human existence are characterized. It was during this period that various manifestations of bioterrorism around the world became much more active. Emphasis is placed on the fact that combating such a phenomenon as bioterrorism should be based on a comprehensive approach to solving this problem. Among other things, it should be a combination of effective law enforcement, a stable political situation and systematic interaction between the state and the population. Conclusions: The bio-terrorism can be divided into that carried out by criminal organizations, individuals or religious on the one hand, and that carried out by the state on the other. The bioterrorism, together with many of its harmful effects, poses a significant danger to humanity and society. It greatly damages the lives and health of individuals, destroys and destroys nature and the environment, and can create political and economic crises or social upheavals.

The author of the article conducts a comparative analysis of the previous and existing criminal procedural legislation of Ukraine regarding the procedural institution of starting criminal proceedings. Certain gaps and inconsistencies in the current criminal procedural legislation of Ukraine on these issues which cause justifiable complaints from all participants in the criminal proceedings are identified. The author analyses genesis, individual scientific points of view and the state of discussion among scientists and practitioners in this direction, as a result of which it is established that the problematic issues raised in the article are not resolved theoretically and in an applied aspect, including the previous and in the current criminal procedural legislation of Ukraine. In the context of the issue under consideration, the legislation of foreign countries is examined including post-Soviet states, Anglo-American and Roman-German legal families. As a result, many Ukrainian scientists have concluded that the foreign experience cannot be applied in national legislation without taking into account the national peculiarities of the legal system of Ukraine, the historical traditions of state construction, the level of professionalism and legal awareness of those who apply legislation, the mentality of the population and other factors. Moreover, the author pays paid attention to the study of discussion questions on the grounds and reasons for resolving the procedural problem of issuing a resolution when instituting criminal proceedings and when making statements and reports on committed criminal offenses in to the single register of pre-trial investigations, as well as refusing to register on these issues. The author makes some suggestions for improving the existing criminal procedural legislation and the regulatory framework in the context of the issues discussed.