Article 290-3

①In the following cases, when a witness, an expert witness, an interpreter, a translator or a person who has made a statement in recorded statement documents (meaning written statements, statements recorded and taken down in writing with the signature or seal of the person making the statements, or recording media capable of recording images or sound on which statements have been recorded; the same applies hereinafter) (hereinafter referred to as the "witness or the like" in this paragraph) makes a request and a court finds it appropriate after hearing the opinions of the public prosecutor and the defendant or the defense counsel, the court may render a ruling to the effect that particulars identifying the witness or the like (meaning the name and address of or other particulars which will identify the witness or the like; the same applies hereinafter) should not be disclosed in an open court:

②When a court comes to find that it is inappropriate for particulars identifying the witness or the like not to be disclosed in an open court with regard to a case where a ruling has been rendered under the preceding paragraph, the court must render a ruling to revoke the ruling rendered under the same paragraph.