Korea, Republic of

1. When the constitutionality of a law is at issue in a trial, the court shall request a decision of the Constitutional Court, and shall judge according to the decision thereof.
2. The Supreme Court shall have the power to make a final review of the constitutionality or legality of administrative decrees, regulations or actions, when their constitutionality or legality is at issue in a trial.
… (Art. 107)

1. The Constitution Court shall adjudicate the following matters:
1. The constitutionality of a law upon the request of the courts.
2. Impeachment;
3. Dissolution of a political party;
4. Disputes about the jurisdictions between State agencies, between State agencies and local governments and between local governments; and
5. Petitions relating to the Constitution as prescribed by law.
… (Art. 111)