If the director of the immigration detention center, etc. finds it necessary for maintaining discipline and order at the immigration detention center, etc. or for any other reason, the director may have an official designated by the director inspect letters sent or received by detainees.
次に掲げる信書については、前項の検査は、これらの信書に該当することを確認するために必要な限度において行うものとする。ただし、第四号に掲げる信書について、入国者収容所等の規律及び秩序を害する結果を生ずるおそれがあると認めるべき特別の事情がある場合は、この限りでない。
For the following letters, the inspection set forth in the preceding paragraph is to be conducted to the extent necessary to confirm that they fall under those letters; provided, however, that this does not apply to letters set forth in item (iv) if there are special circumstances that give grounds to find that they are likely to result in harm to discipline and order at the immigration detention center, etc.:
領事官等から受ける信書
letters received from consular officers, etc.;
被収容者が国又は地方公共団体の機関から受ける信書
letters received by a detainee from an organ of the national government or of a local public entity;
letters sent by a detainee to an organ of the national government or of a local public entity that conducts an investigation concerning measures taken by the director of the immigration detention center, etc. against the detainee or other treatment the detainee has received;
被収容者が自己に対する入国者収容所長等の措置その他自己が受けた処遇に関し弁護士法第三条第一項に規定する職務を遂行する弁護士（弁護士法人又は弁護士・外国法事務弁護士共同法人を含む。次条第二項において同じ。）との間で発受する信書
letters sent or received by a detainee to or from an attorney (including a legal professional corporation or a joint corporation of attorneys and registered foreign lawyers; the same applies in paragraph (2) of the following Article) performing the duties provided for in Article 3, paragraph (1) of the Attorney Act concerning measures taken by the director of the immigration detention center, etc. against the detainee or other treatment the detainee has received.