Proposal of a method to design science and technology policy for safety and security of society

In this thesis, a method to design science and technology policy based on reasonable ground is proposed. First, we categorize 21 kinds of risks selected from electronic dictionary and newspapers in two ways, from the viewpoint of characteristics and means. And then we can know the correspondence of characteristics and means of those risks by comparing two categorizes. This method would be useful to design new means for emerging risks because we can refer similar risks and their means with clear ground. Language: ja