A letter rogatory as one of the forms of obtaining information important in choosing a criminally effective preventive measure

Purpose: To study the criminally significant circumstances for resolving the issue of the application of preventive measures by the investigator. Methodology: Historical and legal, formal legal methods were used in the research process. Results: Based on the systematization and analysis of the requirements of the legislation governing the use of preventive measures, the author has formulated guidelines for the formation of a letter rogatory. Novelty/originality/value: Based on this study, the role and significance of the institution of a separate commission and its results in the formation of the evidence base, its consolidation and significance in deciding the application of procedural coercion measures against the suspect and / or the accused have been highlighted. The author reveals the forensic nature of the results of a separate order, their significance for consolidating the evidence base and obtaining new information that affects the choice of an effective preventive measure in relation to the suspect and / or the accused.