Although the executive branch appoints Japanese Supreme Court justices as it does in the United States, a personnel office under the control of the Supreme Court rotates lower court Japanese judges through a variety of posts. This creates the possibility that politicians might indirectly use the...

It is natural to suppose that a prosecutor's conviction rate-the ratio of convictions to cases prosecuted-is a sign of his competence. Prosecutors, however, choose which cases to prosecute. If they prosecute only the strongest cases, they will have high conviction rates. Any system that pays...