is there always a jury in the central criminal court
Jury trial In the Republic of Ireland, a common law jurisdiction, jury trials are available for criminal cases before the Circuit Court, Central Criminal Court and defamation cases, consisting of twelve jurors.
Juries in the United States Article III of the U.S. Constitution states that all trials shall be by jury. The right was expanded with the Sixth Amendment to the United States Constitution, which states in part, "In all criminal prosecutions, the accused shall enjoy the right to a speedy and public trial, by an impartial jury of the state and district wherein the crime shall have been committed," and the Seventh Amendment to the United States Constitution, which guarantees a jury trial in civil cases.