Abstract: The subject of the study is the regularities of the mechanism of committing a crime, organizational, tactical and legal bases for identifying and eliminating circumstances that contribute to the commission of crimes in the field of state defense orders. The object of the study is illegal activity and investigative prevention in the field of state defense orders. The purpose of the study is to determine the optimal approaches to improving preventive work in criminal cases of crimes committed in the field of state defense orders. Methods of description and generalization of typical circumstances contributing to the commission of crimes and other violations were used in the preparation of the material. The logical method was used to present the material. Dialectical and formal legal methods were used in the study of regulatory legal acts and areas of interaction between the bodies of preliminary investigation and other government agencies for preventive purposes. The novelty of the research lies in obtaining new knowledge about the negative circumstances that contribute to the commission and concealment of a crime at various stages of the implementation of a state defense order, taking into account the specifics of legal regulation. Among such circumstances, there are those that contain signs of administrative offenses. In this regard, the authors conclude that it is necessary to involve specialists of antimonopoly, budgetary, financial and other legislation in the investigation of crimes committed in the field of state defense orders. The intensification of work on attracting specialists in procedural and non-procedural forms is the most promising direction for improving operational and service activities in the designated area. The approximate requirements and recommendations for the elimination of circumstances contributing to the commission of crimes in the field of state defense orders are given.

Abstract: This article examines the procedural means of studying the identity of the wanted suspect (accused) in the conditions of proliferation of high technologies. The object of this research is criminal procedure legal relations, within the framework of which the investigating officers examines the identity of the suspect (accused) for tracing their location. The relevance of the selected topic is substantiated by the practical need of law enforcement authorities to reduce the number of criminal cases shelved due to tracking down the suspect. The goal of this work lies in assessment of the procedural means from the perspective of their possible application in investigation of the information and communication space. Special attention of given to the main instrument of preliminary investigation agencies – investigative measures. It is determined that the preliminary investigation agencies are limited in the use of information and communication space for criminal tracking. The novelty lies in the attempt to view the procedural means of studying information systems from the perspective of government and private databases, iCloud, dating site, social networks, instant messengers, Internet applications, etc. However, their use requires new procedural forms. The development of such forms would improve the effectiveness of the activity of preliminary investigation agencies in tracking down the suspects (accused).