This research is devoted to the disclosure of the institution of precautionary measures, namely - securing the claim, which is one of the procedural mechanisms for ensuring access to justice. Because it is the possibility of execution of the final court decision that will ensure a fair trial for each participant in the process.
 To ensure the reliability and completeness of the results obtained by the authors in this study used a set of general and special methods that are characteristic primarily of legal science. The integrated use of such methods ensured the achievement of the purpose and objectives of the study, as well as the persuasiveness of the conclusions. In particular, the dialectical method was used to study the legal nature and significance of the institution of precautionary measures in civil and commercial proceedings. Methods of analysis and synthesis were used in the formulation of basic concepts, such as «precautionary measures», «securing the claim» and so on. The historical and legal method allowed us to focus on the process of legal regulation and legislative consolidation of the institution of security measures. The formal-logical method was used in the analysis of the norms of the current legislation and theoretical developments concerning, in particular, the essence of procedural tools of accessibility or restriction of access to justice. The empirical basis of the study was the materials of domestic judicial practice.
 Based on the study, the authors conclude that securing the claim as a procedural phenomenon cannot remain unchanged, it acquires new features over time, loses archaic elements, but still does not lose, but rather, on the contrary, increases its importance in modern civil process. Now securing the claim is an integral part of the institution of security measures (along with the provision of evidence), which corresponds to the protected function. Thus, the actual enforcement of court decisions is largely intended to guarantee the institution of securing the claim as one of the types of precautionary measures. Participants in civil proceedings apply to this institution in order to guarantee the execution of future court decisions and prevent them from causing significant harm.
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