The article examines the institutional forms of organizing scientific research in the field of criminal psychiatry in the USSR in the 1920s. The key research method is the systematization of archival and publication materials, as well as the analysis of organizational structures, such as the GIIPP and its regional branches, in order to identify their role in the development of an interdisciplinary interdepartmental approach to the study of the criminal's personality. The novelty of the research lies in identifying aspects of the formation of the scientific base of Russian criminal psychiatry, as well as in highlighting the contributions of leading scientists of this period — E.K. Krasnushkin, N.P. Brukhansky, and others. — to create the systemic, methodological and organizational foundations of the discipline. The proposed conclusions can contribute to a deeper understanding of the historical prerequisites for the development of Russian criminal psychiatry and the formation of modern approaches to its institutional base within the framework of historical and scientific research in Russia.