The topicality of the research problem. Criminalistic tactics to be a system of special scientific statements is designed to optimize investigative activity related to applying means and methods of crime investigation. At the present stage among many theoretical and methodological issues concerning both criminalistics and its units, the question of the concept and content of criminalistic tactics in the system of scientific knowledge is said to be relevant. The research problem definition. The presented structure and the basis of the concept of criminalistic tactics as recommendations limits its subject sphere and does not take into account its close relationship with other units of criminalistics. The research aim. To determine correctly the role and place of criminalistic tactics in the system of scientific knowledge it is necessary to consider in detail the relationship of the latter with its other units, including other interdisciplinary social sciences. The research methods. The research methodology is delivered by analytical methods, empirical methods of comparison, description and interpretation, methods of analysis and synthesis, methods of induction and deduction. The key conclusions and recommendations. Criminalistic tactics includes general recommendations of the crime to be investigated; its statements are not related to the details of a particular illegal action. However, the statements and methods of criminalistic tactics are closely connected with other units of criminalistics and other sciences, such as Criminal Law, Criminal Procedure Law, etc. This relationship is not of one-side character as the statements of one unit influence development of the statements of other scientific knowledge. Thus, at present the issue of expanding the subject area and the possibilities of criminalistic tactics is of great importance, taking into account its general principles, influence of individual scientific theories of criminalistics and the main aspects of the close relationship of the latter with other sciences.