This paper presents the importance of ethical codes in the everyday work of state or police officers, especially in public relations. Namely, police officers are required to protect the personal reputation and reputation of the civil service; in the public performances in which the state body is represented, they must state the views of the state body in accordance with regulations, powers, professional knowledge and code of ethics, and be guided by the application of ethical principles, bearing in mind that in every public appearance they must whatc out for the reputation of the civil service, and their personal reputation, as well. The basic concepts important for understanding the topic are being explained in order to address the subject matter and issues of this graduate work, as precisely and highly in quality, as possible. Therefore, the concept of public relations, ethical codes and ethics codes in public relations will be described and explained first at the beginning of the work. The survey I carried out is representative work, since 44 out of the total 69 employees in public relations in the Ministry of the Interior throughout Croatia participated in it. Although the results received through the research of opinions and attitudes of the employees in public relations in the Ministry of Interior, can be considered subjective and their responses can be given in a more positive tone than the objective situation really is, I consider that hypotheses "Respondents are adhering to the State and police officers code to the greatest possible extent.", "The Role of the Code of Ethics of Police Officers to a large extent influences the growth of identity, image and reputation of the MoI." and the last hypothesis "Respondents largely adhere to and respect the principles of the Ethical Code of the Croatian Public Relations Association." are confirmed in this paper.