Introduction. The article examines the theoretical and applied aspect of the trends of crimes committed by persons with mental disorders that do not exclude sanity. The need to take these data into account in forensic forecasting is noted, as well as the expediency of improving forensic techniques in connection with the increase in the number of socially dangerous acts being studied. Methods. The research uses general scientific methods of analysis and synthesis, as well as special forensic methods. A statistical analysis of data on the incidence of mental disorders and indicators of forensic psychiatric examination was carried out. Mathematical modeling methods, including linear regression, have been applied to predict crime trends among this category of persons. A comparative analysis of normative legal acts regulating the interaction of law enforcement agencies and medical institutions has been carried out in order to identify gaps and proposals for their elimination. The materials of investigative and judicial practice on crimes against life and health, as well as property, committed by persons with mental disorders that do not exclude sanity (60 materials of criminal cases in the archives of the Savelovsky District Court of Moscow, 30 materials of criminal cases in the archives of the Lomonosov District Court of the Leningrad region) were studied. Results. The necessity of introducing information on the mental state of offenders into statistical reporting is substantiated in order to increase the effectiveness of forensic support for investigations. The directions of improving private forensic techniques are proposed, including taking into account the specifics of mental disorders in the formation of criminalistic characteristics of crimes, the development of special tactical techniques for interrogation and other investigative actions with such persons, as well as strengthening interdepartmental interaction. The opinion is expressed on the need for verbatim reflection of the testimony of persons with mental disorders in the protocols of investigative actions.
forensic support, persons with mental disorders, sanity, forensic psychiatric examination, forensic methods of investigation of certain types of crimes, the state of crime, limited sanity