Supplementary Provisions, Article 10Transitional Measures Concerning Treatment of Detainees
第十条（被収容者の処遇に関する経過措置）
The provisions of Article 55-18 of the Immigration Control Act as amended by Article 2 also apply to detainees (meaning detainees prescribed in Article 55-4, paragraph (1) of the Immigration Control Act as amended by Article 2; hereinafter the same applies in this Article) who are actually detained in an immigration detention center, etc. prescribed in Article 2, item (xvi) of the Immigration Control Act as amended by Article 2 at the time this Act comes into effect. In this case, the phrase "upon the commencement of detention at the immigration detention center, etc." in Article 55-18, paragraph (1) of the Immigration Control Act as amended by Article 2 is deemed to be replaced with "promptly after the Act Partially Amending the Immigration Control and Refugee Recognition Act and the Special Act on the Immigration Control of, Inter Alia, Those Who Have Lost Japanese Nationality Pursuant to the Treaty of Peace with Japan (Act No. 56 of 2023) comes into effect".
第二条改正後入管法第五十五条の十八の規定は、この法律の施行の際現に第二条改正後入管法第二条第十六号に規定する入国者収容所等に収容されている被収容者（第二条改正後入管法第五十五条の四第一項に規定する被収容者をいう。以下この条において同じ。）についても、適用する。この場合において、第二条改正後入管法第五十五条の十八第一項中「その入国者収容所等における収容の開始に際し」とあるのは、「出入国管理及び難民認定法及び日本国との平和条約に基づき日本の国籍を離脱した者等の出入国管理に関する特例法の一部を改正する法律（令和五年法律第五十六号）の施行後速やかに」とする。
Personal belongings (excluding cash) of a detainee that are actually retained pursuant to the provisions of the Immigration Control Act Prior to Amendment by Article 2 or an order based on it at the time this Act comes into effect are deemed to be articles set forth in Article 55-25, item (ii) of the Immigration Control Act as Amended by Article 2, and the provisions of Article 55-28 of the Immigration Control Act as Amended by Article 2 apply to them.
この法律の施行の際現に第二条改正前入管法又はこれに基づく命令の規定により領置されている被収容者の所持品（現金を除く。）は、第二条改正後入管法第五十五条の二十五第二号に掲げる物品とみなして、第二条改正後入管法第五十五条の二十八の規定を適用する。
Communications of a detainee the sending or receiving of which has been prohibited or restricted pursuant to the provisions of Article 61-7, paragraph (5) of the Immigration Control Act Prior to Amendment by Article 2 and which are actually retained pursuant to the provisions of an order based on the Immigration Control Act Prior to Amendment by Article 2 at the time this Act comes into effect are deemed to be letters kept pursuant to the provisions of Article 55-64, paragraph (1) of the Immigration Control Act as Amended by Article 2.
第二条改正前入管法第六十一条の七第五項の規定により発受を禁止され、又は制限された被収容者の通信であって、この法律の施行の際現に第二条改正前入管法に基づく命令の規定により領置されているものは、第二条改正後入管法第五十五条の六十四第一項の規定により保管されている信書とみなす。