The aim of the study was to determine the most effective model for regulating law enforcement in Europe and the post-Soviet space, as well as to formulate recommendations for the unification and standardization of legislation in this area. The empirical background was statistics on crime rates, premeditated murders by country; provisions of legislation governing the law enforcement activities of 13 countries and international regulations. Methods of system approach, descriptive statistics, descriptive analysis, generalization and prognosis, system selection, comparative method was used. The activities of law enforcement agencies are aimed at ensuring public order, national security and the protection of human rights, freedoms, and interests. Each state has its own law enforcement system, which is clearly regulated. The main indicator of the effectiveness of law enforcement is the crime rate and the level of security in the country. It is concluded that the most effective is the law enforcement model with its fundamental principles of decentralization of law enforcement agencies.
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