Constitution of the Republic of China (Taiwan) Article 74

No Member of the Legislative Yuan shall, except in case of flagrante delicto, be arrested or detained without the permission of the Legislative Yuan.
中文原文 中華民國憲法第74條
立法委員,除現行犯外,非經立法院許可,不得逮捕或拘禁。

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