Regulations Governing Temporary Detention of Passengers Article 9

When the accused is detained in accordance with subparagraph 1 to 3 of Paragraph 1, Article 64 of the Act, the detainee shall be transferred to judicial authorities or shall be processed accordingly, after the investigation is completed by the Agency.
中文原文 內政部入出國及移民署實施暫時留置辦法第9條
當事人依本法第六十四條第一項第一款或第三款規定被暫時留置者,經入出國及移民署調查後,應將其移送司法機關,或為其他必要之處置。

English translation for reference only; the Chinese text prevails. Not legal advice.