(Rules of the Supreme Court)
Article 31.
Besides the provisions of this Law, the necessary procedural rules concerning examinations by the Tokyo High Court and concerning the issuance of permits of detention or of provisional detention shall be determined by the Supreme Court.
(Exception to the jurisdictional area of the Tokyo High Court)
Article 32.
Notwithstanding the provisions of the Law for the Establishment of Inferior Courts and their Territorial Jurisdiction (Law No. 63 of 1947), there shall be no provision limiting the jurisdictional area of the Tokyo High Court in relation to the performance of the duties of the Tokyo High Court or its judges, or to that of the public prosecutors of the Tokyo High Public Prosecutors Office, which are undertaken pursuant to this Law.
(Request for extradition relating to an offense committed prior to the entry into force of a treaty of extradition)
Article 33.
When a new treaty of extradition is concluded between Japan and a foreign country, the provisions of this Law concerning a request for surrender pursuant to a treaty of extradition shall also apply to a request for surrender which is made after the entry into force of the treaty, for an offense committed prior to the entry into force of the treaty, except if there are provisions in the treaty to the effect that the contracting country may not request that Japan surrender an offender for an offense committed prior to the entry into force of the treaty concerned.
Competent national judicial authority
EDIT.