The article reveals the nature of the phenomenon that fundamentally determines the effectiveness of the forensic tactic, a section of forensic science. The range of problems affects methodological, historical, forensic, and psychological aspects. The result of the study was a model of tactical and forensic impact, which has not only theoretical, but also practical and applied value. The object of the research is a complex of backbone elements of the phenomenon of impact as a unique form of forensic interaction of participants in the investigation. In the study, the general methods of analysis, synthesis, systemic and structural methods and the specific methods of biographical analysis, statistical analysis, comparative historical analysis, and expert assessment were used. The article contains the following conclusions. Legal impact must be recognized as tactically and ethically permissible if it implies the possibility of variability of the reaction of the affected person, which preserves the freedom of choice for the person under investigation. A tactical technique, which boils down to only a recommendation without regard to the conditions in which they are implemented, can be recognized as an archaism today. Orientation to formalized rather than intuitive knowledge is extremely significant since the former personifies the scientific approach and the latter, at best, everyday logic. Personalization, in the context of the individualization of tactical impact, is understood as the selection of such personal characteristics that, being measured, will allow making adjustments to the use of tactical techniques. However, due to the fact that the individualizing role of a single psychological property is low, and complexes of psychological properties as systemic formations have not been studied enough, personalization can be perceived as a facilitated (express) form of individualization of tactical impact using the advantages of formalization. Typification, in the context of the individualization of tactical impact, is understood as the selection of such psychotypological features that, being measured, will allow making adjustments to the use of tactical techniques. Typical models of behavior are an ideal means of individualizing a tactical technique at the present stage of development of knowledge about a person. The research vector focused on the individualization of tactical techniques will contribute, at the theoretical level, to their deeper scientific understanding and, at the applied level, to their more effective application.