The Courts of Ireland consist of the Supreme Court, the Court of Appeal, the High Court, the Circuit Court, the District Court and the Special Criminal Court. With the exception of the Special Criminal Court, all courts exercise both civil and criminal jurisdiction, although when the High Court is exercising its criminal jurisdiction it is known as the Central Criminal Court.
The courts apply the laws of Ireland. There are four sources of law in Ireland: the Constitution, European Union law, statute law and the common law. Under the Constitution, trials for serious offences must usually be held before a jury. Except in exceptional circumstances, court hearings must occur in public. The High Court, the Court of Appeal, and the Supreme Court have authority, by means of judicial review, to determine the compatibility of the common law and statute law with the Constitution. Similarly, the courts may determine the compatibility of the common law with statute law.
