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If a court hearing a case finds that the law or the presidential decree to be applied is unconstitutional, or if convinced of the seriousness of a claim of unconstitutionality submitted by one of the parties, it shall postpone the consideration of the case until the Constitutional Court decides on the issue. … (Art. 152)

The President of the Republic, the two political party groups having the largest number of members in the Grand National Assembly of Turkey, and at least one-fifth of the total number of members of the Grand National Assembly of Turkey shall have the right to apply for annulment action directly to the Constitutional Court, based on the assertion of the unconstitutionality, in form and in substance, of laws, of presidential decrees, of Rules of Procedure of the Grand National Assembly of Turkey or of certain articles or provisions thereof. (Art. 150)

The Constitutional Court shall examine the constitutionality, in respect of both form and substance, of laws, presidential decrees and the Rules of Procedure of the Grand National Assembly of Turkey, and decide on individual applications. Constitutional amendments shall be examined and verified only with regard to their form. However, presidential decrees issued during a state of emergency or in time of war shall not be brought before the Constitutional Court alleging their unconstitutionality as to form or substance.
The verification of laws as to form shall be restricted to consideration of whether the requisite majority was obtained in the last ballot; the verification of constitutional amendments shall be restricted to consideration of whether the requisite majorities were obtained for the proposal and in the ballot, and whether the prohibition on debates under expedited procedure was observed. Verification as to form may be requested by the President of the Republic or by one-fifth of the members of the Grand National Assembly of Turkey. Applications for annulment on the grounds of defect in form shall not be made after ten days have elapsed from the date of promulgation of the law; and it shall not be appealed by other courts to the Constitutional Court on the grounds of defect in form.
Everyone may apply to the Constitutional Court on the grounds that one of the fundamental rights and freedoms within the scope of the European Convention on Human Rights which are guaranteed by the Constitution has been violated by public authorities. In order to make an application, ordinary legal remedies must be exhausted.
In the individual application, judicial review shall not be made on matters required to be taken into account during the process of legal remedies.
Procedures and principles concerning the individual application shall be regulated by law.
The Constitutional Court in its capacity as the Supreme Court shall try, for offences relating to their functions, the President of the Republic, the Speaker of the Grand National Assembly of Turkey, members of the Council of Ministers; presidents and members of the Constitutional Court, High Court of Appeals, Council of State, High Military Court of Appeals, High Military Administrative Court, High Council of Judges and Prosecutors, Court of Accounts, and Chief Public Prosecutors and Deputy Public Prosecutors.
The Chief of General Staff, the commanders of the Land, Naval and Air Forces and the General Commander of the Gendarmerie shall be tried in the Supreme Court for offences regarding their duties.
The Chief Public Prosecutor of the High Court of Appeals or Deputy Chief Public Prosecutor of the High Court of Appeals shall act as prosecutor in the Supreme Court.
Application for judicial review may be made against the decisions of the Supreme Court. Decisions taken by the General Assembly regarding the application shall be final.
The Constitutional Court shall also perform the other duties given to it by the Constitution. (Art. 148)