Article 321

一with regard to a document in which a statement made before a judge (including those made by means that allow communication while mutually recognizing each other's presence through the transmission of images and sound; the same applies in the following item) is recorded, when the person who has made the statement is unable to do so in the trial preparation or on the trial date due to death, a mental or physical disorder, or being non est or out of the country, or when that person makes a statement inconsistent with the previous statement in the trial preparation or on the trial date;

二with regard to a document in which a statement made before a public prosecutor is recorded, when the person who has made the statement is unable to do so in the trial preparation or on the trial date due to death, a mental or physical disorder, or being non est or out of the country, or when that person makes a statement in the trial preparation or on the trial date, which conflicts with or substantially differs from the previous statement; provided, however, that this is limited to the case when there are special circumstances that afford the previous statement more credible than the statement made in the trial preparation or on the trial date; and

三with regard to a document other than the documents set forth in the preceding two items, when the person who has made the statement is unable to do so in the trial preparation or on the trial date due to death, a mental or physical disorder, or being non est or out of the country, and that statement is essential to prove or disprove the facts of the crime; provided, however, that this is limited to the case when the previous statement is made under special circumstances that afford the previous statement credible.