Abstract: The article is devoted to the problem of legal definition of the concepts of close relatives, close persons and family members of a citizen. Inconsistencies between the norms of the Constitution of the Russian Federation and the norms of family legislation in relation to the criminal procedural category "close relatives", which ensures the provision of witness immunity in criminal proceedings. It discusses controversial issues about the circle of close relatives who have the right not to testify as witnesses. The essence of this socio-legal status is revealed, the circle of persons forming it is established, the positive and negative sides of the existing definitions and formulations of "close relatives" are considered.The scientific novelty lies, first of all, in the fact that in the presented article the norms of criminal procedure, civil and family law regulating relations of kinship, matrimony, as well as the procedure and problems of their application in criminal proceedings were considered. Paragraph 4 of Article 5 of the Criminal Procedure Code of the Russian Federation refers to spouses as close relatives, but Article 14 of the Family Code of the Russian Federation does not consider them as such. The analysis of family law allows us to conclude that kinship is possible only by "blood" (the exception is the institution of adoption). For this reason, spouses cannot be close relatives and they are in a marital relationship to each other.
The proposals on amendments and additions to the Criminal Procedure Code of the Russian Federation are formulated, which will improve the domestic criminal procedure legislation within the framework of developing a unified approach to the content of the definition of "close relatives".

Abstract: The object of research is the set of legal provisions regulating social relations emerging during the process of struggle against illicit trafficking of drugs, psychoactive substances, and their precursors. The research subject is the set of legal norms in the field of struggle against illicit trafficking of drugs, psychoactive substances and precursors. The research methodology is based on general philosophical methods, the dialectical method of scientific cognition, analysis of documents, comparative-legal analysis, the specific historical approach, the methods of analysis, synthesis, deduction, and induction. The theoretical significance of the research consists in the attempt to analyze the legal basis of the struggle against illicit trafficking of drugs, psychoactive substances and precursors. The purpose of the research is the improvement of the legal basis of the struggle against illicit trafficking of drugs, psychoactive substances and precursors; the elimination of contradictions in regulatory documents. The article represents the opinion about the necessity to exclude the term “intoxicating substances”. The analysis of the legal framework of the struggle against illicit trafficking of drugs, psychoactive substances and they precursors allows the authors to detect the problem issues of non-compliance of legal provisions regulating legal relations in the field of the struggle against illicit trafficking of drugs at the level of federal legislation, which often leads to the contradictory practice of law-enforcement in the field of administrative, intelligence, criminal-legal and other legal relations involving the internal affairs bodies of the Russian Federation.