日本国憲法第81条
The Supreme Court is the court of last resort. Where the determination of the constitutionality of any law, order, regulation or official act is in question, the judgment of the Supreme Court in all cases arising under or involving Chapter III of this Constitution is final; in all other cases where determination of the constitutionality of any law, ordinance, regulation or official act is in question, the judgment of the Court is subject to review by the Diet.
A judgment of the Supreme Court which is subject to review may be set aside only by the concurring vote of two-thirds of the whole number of representatives of the Diet. The Diet shall establish rules of procedure for reviewing decisions of the Supreme Court.