This chapter explores the supremacy of the law and the maintenance of order is matters of supreme importance in every civilised country. It considers most of the factors of civilisation in Japan and the present prison system in Japan is regulated and administered on sounder principles. The Government has established a police and prison college in Tokio, where both police and prison officials are effectively trained for the discharge of their duties. One interesting feature of the Japanese prison system is the granting of medals to criminals who have shown an amendment of their lives by good conduct and diligence at their work. The object of the prison system of labour is to give the prisoners a careful training, and to encourage diligence, so that on their return to the world they may not experience difficulty in obtaining employment.