Abstract: The subject of the study is the peculiarity of the use of the principle of visibility in the study of methods of escape from custody by suspects (accused) by employees of the security and convoy units of the police. The author draws attention to the fact that for criminal-legal characteristics at different times, including today, not all methods of escape from custody are important, however, it is necessary to know and recognize them for each police officer, since favorable conditions for escape from custody are more often created by themselves employees of security and convoy units. Using the acquired knowledge, a police officer will be able to reproduce the situation in practice and prevent the escape from custody. The article notes the professional qualities that an employee of the security and convoy service must possess in order to successfully solve the tasks assigned to him and the orientation of training that can contribute to the development of these qualities. The author considers the importance of applying the principle of visibility in teaching, justifies the use of specific means of ensuring visibility that can be illustrated to students, and provides examples. The article examines the violations that contribute to the escape from custody, the methods of its commission, in the study of which examples are used in the form of tables, graphs, photographs, video clips, extracts from court decisions. The position is substantiated that using the principle of visibility improves the perception and memorization of information