The system of professional training of officers of the Ministry of Internal Affairs of Russia is meant to ensure the competence of a specialist and his high professional readiness for implementing the law-enforcement functions by means of a deep theoretical training, practical orientation of the training process, and introduction of students to values of the profession. The primary focus is on the formation of students’ competencies at all levels, which act as an important guide for organizing the activities of managers and teachers, as well as the desired result of mastering the content of education, which is shown in the ability to apply variably formed knowledge and skills depending on the situation. Professional readiness, in addition to the accumulated competencies and practical experience in their application, includes a personal component that characterizes the officer’s attitude towards the processes and phenomena, formed through the perception of professionally and personally important information, understanding of an environmental context, development of his attitude towards the phenomena of society in the process of the reflexive activity. The teacher’s function is transformed from an active translator of professionally significant information into a subject supporting accumulation of the personal experience in a planned person-centered environment that provides for a partner model of cooperation and reflexivity of relations between the subjects of joint activity. The goal of the research is to analyze the methodological basis of the process of professional becoming of officers from the Ministry of Internal Affairs of Russia, and to identify significant characteristics of the process of planning the educational environment based on pedagogical support in the formation of personal experience. Such methods as a comparative analysis of methodological approaches in organizing the person-centered education, the study of independent characteristics, search of static information, method of expert assessment were applied. The methodological approaches in organizing the professional becoming of a specialist have been studied, the role of pedagogical support in the professional becoming of a specialist has been substantiated; the relations between the effectiveness of professional development and organization of pedagogical support of this process have been detected.