Constitutional adjudication deals with the cases on the constitutionality of a law where the court determines whether the legislation the National Assembly has enacted violates the Constitution (Article 41 of the Constitutional Court Act), the impeachment cases where the court determines whether a high-ranking public official shall be removed from the office (Article 48 of the Constitutional Court Act), cases on the dissolution of a political party where the court can order the dissolution of a political party which denies the democratic basic order (Article 55 of the Constitutional Court Act), cases on the disputes over authority where the court resolves the disputes arising between state agencies over the existence or non-existence or the scope of authority (Article 61 of the Constitutional Court Act), and the constitutional appeals the purpose of which is to protect the fundamental rights of the people (Article 68 of the Constitutional Court Act).

Hankyul has attorneys specializing in each area and particularly has experience of successfully arguing the case deriving the court decision that it is unconstitutional in numerous constitutional appeal cases for the protection of the fundamental rights of the people and in numerous cases on the constitutionality of a law which determines whether a law is constitutional, etc. Hankyul makes every effort to realize the fair application of law through the application for request for adjudication on the constitutionality of a law and the constitutional appeal procedures with respect to the provisions of the relevant law which need to be amended if it is necessary for the protection of the fundamental rights or if the constitutionality of the law has come into question.