Disclosure of the secret of the preliminary investigation as the manifestation of the against investigation

Introduction: disclosure of preliminary investigation data may have serious negative consequences in the form of violation of the rights and legitimate interests of participants in criminal proceedings. In article such actions are considered as counteraction from subjects of process for the purpose of obstruction of achievement of tasks of criminal proceedings. Materials and methods: the normative basis of the study is formed by the Constitution of the Russian Federation, criminal and criminal procedure legislation, local regulations, formulating the main provisions of the secrecy of the preliminary investigation. The methodological basis of the study was the General dialectical method of scientific knowledge, which is universal in nature, as well as methods of logical deduction, induction, cognitive methods and techniques of observation, comparison, analysis, generalization and description. Results: allowed to reveal the content and practical significance of the concept of secrecy of the preliminary investigation and optimization of the investigation process in compliance with this concept. Conclusions and conclusions: the interrelations between the existing concept of secrecy of the preliminary investigation and the problem of disclosure of the preliminary investigation data as an element of counteraction to the investigation are analyzed.