The article is dedicated to the formulation of the definition for the concept of «normative and legal support for the activity of the State Bureau of Investigation as a subject of preventing military criminal offenses under martial law» and the analysis of the system-forming features that make up its content.

The author’s definition for the concept of «normative and legal support for the activity of the State Bureau of Investigation as a subject of preventing military criminal offenses under martial law» is formulated, under which it is proposed to understand the consolidation and guaranteeing by general and special normative and legal acts of the grounds and procedure for the implementation by the specified state law enforcement agency of preventive powers in the field of compliance with the established procedure for performing military service under martial law in order to prevent and counteract the commission of criminal offenses therein.

Using the method of analysis, system-structural and hermeneutic methods, a number of system-forming features that constitute the content of the formulated concept have been identified, namely:

1. Firstly, this is a preventive activity, which is established at the normative and legal level.
2. Secondly, the preventive activity of the State Bureau of Investigation must be guaranteed at the normative and legal level.
3. Thirdly, the preventive activity of the State Bureau of Investigation in the field of compliance with the established procedure for performing military service under martial law is carried out on appropriate grounds and in a certain order.
4. Fourthly, the purpose of the activity (implementation of preventive powers) of the State Bureau of Investigation in the field of compliance with the established procedure for performing military service under martial law is to prevent and counteract the commission of military criminal offenses.

Key words: martial law, military criminality, criminal offenses against the established procedure for performing military service (military criminal offenses), criminality structure, unauthorized abandonment of a military unit or place of service, desertion, criminological policy, prevention, subject of prevention (subject of preventive activity), law enforcement agency, State Bureau of Investigation, servicemen, normative and legal support, normative and legal act, legislation.

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