The police's investigation announcement is mainly related to the facts of the suspect, which is prohibited in principle in Article 126 of the Criminal Act, but in reality, it has been made under the provisions of the Police Investigation Publication Rule on the grounds of the harmonious relationship between the guarantee of the people's right to know and the protection of the suspect's human rights. However, the purpose of this study is to explore institutional improvement measures by looking at how the police and the media actually lead to criminal reporting in relation to criminal cases. The FGI survey method was used as a research method. It is a research method that has the advantage of systematically organizing information on dynamic relationships between stakeholders or expert groups in the field. In this study, three police officers, five police administration and law professors, and three police reporters were interviewed in groups to collect qualitative data on system improvement based on the experiences and perceptions of investigative agency members and officials. As a result of the study, under excessive competition in the media for the right to know, police officers are calling for clarity of the concept and scope because there are many ambiguous aspects in which the criteria for disclosing the suspect are not clear. It was suggested that it is necessary to improve the media response window and limit individual contact with media reporters and investigators.