This study is aimed to discuss the issue of who should be the agency of self-regulation of cyber sexual violence and suggest policy recommendations. To do this I conducted in-depth interviews with 15 ISP's. As a framework of analysis I formulated a tripartite model comprising three interest-groups of ISP's, users, and the government. Also I tried to reveal the factors influencing their attitudes toward agency, such as the characteristics of the ISP's and attitudes toward infringement of freedom of expression. The findings are as follows.
First, as to the agency of making the criteria, most responded that all three of the government, users, and the ISP's should work together for the criteria. Second, as to whether they consider laws or regulations by ISP's as infringement of freedom of expression, more than half answered that they do not consider it as infringement, but consider regulation is needed. Third, as to the mode of self-regulation such as through federation, more than half of the ISP's were for it but on certain conditions, which can be considered that they were against it.
As a policy recommendation I suggest that the ISP's, users, and the government should reach balance of power to make criteria in terms of laws, technology, and norms, so that the tripartite model should make a balanced triangle. Of course this is not an easy thing to do, and the government should do the role of initiation and responsibility. In case of ISP's, they should try particularly harder to make stipulations and enforce them, running reporting centers and monitoring teams. They should also organize federations of ISP's, legislate voluntary code of conduct or guidelines to enforce self-regulation. With regard to technology, ISP's should try to develop technology regarding blocking, site grading, and filtering, and should voluntarily put them into practice.