Règle correspondante
Japan
Practice Relating to Rule 100. Fair Trial Guarantees
Japan’s Law Concerning the Treatment of Prisoners of War and Other Detainees in Armed Attack Situations (2004) states:
Article 80
(1) The prisoner-of-war camp commander shall, in cases where any of the persons listed in the following items request to visit detainees, permit detainees to receive the visit. In this case, no staff member of the prisoner-of-war camp attends a visit for a detainee:
(iii) Defence counsels in criminal cases of the detainee.
Article 82
(1) The Minister of Defence may order the prisoner-of-war camp commander … to restrict or suspend the visits prescribed in the provision [contained in] the preceding two Articles, when the Minister of Defence finds it extremely necessary to do so …
(2) The Minister of Defence shall, when he/she finds the restriction or suspension of visits set forth in the preceding paragraph has become unnecessary, order immediately the prisoner-of-war camp commander to terminate such rescission or suspension of the visits. 
Japan, Law Concerning the Treatment of Prisoners of War and Other Detainees in Armed Attack Situations, 2004, Articles 80(1)(iii) and 82(1) and (2).
Japan’s Code of Criminal Procedure (1948), as amended in 2006, states:
(1) The public prosecutor and the accused or his/her counsel may attend the examination of a witness.
(3) The person prescribed in paragraph (1) of this Article may, when he/she attends the examination, examine the witness him/herself after notifying the presiding judge of his intent. 
Japan, Code of Criminal Procedure, 1948, as amended in 2006, Article 157(1) and (3).
Japan’s Code of Criminal Procedure (1948), as amended in 2006, states:
Article 175
When the court has a person who is not proficient in the national language make a statement, it shall have an interpreter interpret it.
Article 176
When the court has a person who is unable to hear or speak make a statement, it may have an interpreter interpret it. 
Japan, Code of Criminal Procedure, 1948, as amended in 2006, Articles 175 and 176.
Japan’s Code of Criminal Procedure (1948), as amended in 2006, states: “Any person may refuse to give testimony when there is the fear that such testimony may result in his/her criminal prosecution or conviction.” 
Japan, Code of Criminal Procedure, 1948, as amended in 2006, Article 146.
In 2007, in its fifth periodic report to the Human Rights Committee, Japan stated:
158. The Constitution provides that “no person shall be compelled to testify against himself/herself” (art. 38, para. 1). The Code of Criminal Procedure gives the suspect the right to refuse testimony and provides that, at the time of the interview, the suspect shall be notified in advance that he/she is not required to make a statement against his/her own will (art. 198, para. 2).
161. Clearly, such interview methods as coercion, torture, and intimidation are not permitted. Interviews conducted in such a manner that would cast doubts on the voluntary nature of the testimony of the suspect are not permitted either. The Code of Criminal Procedure stipulates that any confession … which is suspected of not having been made voluntarily shall not be used as evidence (art. 319, para. 1). Furthermore, it provides that any deposition or written statement, including admission of facts adverse to the defendant’s interests, which may not have been made voluntarily shall not be used as evidence (art. 322, para. 1). If a dispute arises in a public trial concerning the voluntary nature or reliability of the testimony, the public prosecutor bears the burden of proof as to these issues, and the determination of these issues is left to the court. 
Japan, Fifth periodic report to the Human Rights Committee, UN Doc. CCPR/C/JPN/5, 25 April 2007, submitted 20 December 2006, §§ 158 and 161.