In this lecture, we will study the Japanese police system and examine various issues and policies related to public safety in Japan. Additionally, special lecturers from not only the police but also other government agencies will be invited to provide lectures from a broad perspective, offering opportunities to deepen understanding of Japan's policy-making and social safety policies. In particular, regarding the situation in cyberspace and its countermeasures and initiatives, active officials involved in policy-making will be invited as special lecturers from various government agencies to provide lectures, offering opportunities to deepen understanding.