The relevance of the study is conditioned by the lack of development of the problem of forming the decision- making ability at the stage of professional training and the need to improve the modern daily practice of future law enforcement officers to ensure the accuracy and timeliness of decisions made against the background of a constant increase in the volume and complexity of incoming information. The purpose of the study was to determine the conceptual basis for the influence of subjective rationality and risk readiness in the decision- making system in the professional activities of police officers. The paper uses the method of comparative and correlation analysis, and statistical analysis of primary data. According to the results of the study, significant correlations were established between rationality and risk factors in decision-making among police officers in groups with different levels of experience and professionalism. The current study focuses on intra-group variations in risk maximisation and the use of rational traits, particularly vigilance, procrastination, avoidance, and over-vigilance in decision-making. These psychological phenomena are explained by studying the main group of law enforcement officers (n=116), divided by the sample according to the criterion of experience in practice (n=59, n=57). A significant difference and psychological difference in the decision-making process component was found between groups with and without practical work experience in law enforcement. This provides an opportunity for further expansion and development in this area, defining the main approach to creating professional skills, forming the ability to make decisions in law enforcement officers without practical experience, and consolidating the basic skills of law enforcement officers with practical experience. The practical significance of the study lies in the prospect of developing psychocorrective programmes and trainings aimed at various employees of law enforcement agencies, depending on the practical experience gained and the area of activity. The research materials can be used in the process of optimising the educational process in professional institutions