Family Act Article 68

Where a minor child disputes the existence or non-existence of a blood relationship with regard to a matter concerning a parent-child relation, where considers it necessary, the court may, upon motion by the parties or on its own initiative, order the parties or the interested parties to undergo blood-type, DNA, or other medical tests within a designated period of time. Where such a motion was made by a party, the party shall make a preliminary showing on facts that are sufficient to cast doubts on the existence or non-existence of a blood relationship.The test ordered in accordance with the preceding paragraph shall be conducted in a manner consistent with widely recognized procedures and methods in medical sciences, taking adequate care to the integrity of physical conditions, health and reputation of the persons subject to such a test.Prior to making a ruling in accordance with Paragraph 1 of this Article, the court shall grant the parties or the interested parties an opportunity to speak.
中文原文 家事事件法第68條
未成年子女為當事人之親子關係事件,就血緣關係存否有爭執,法院認有必要時,得依聲請或依職權命當事人或關係人限期接受血型、去氧核醣核酸或其他醫學上之檢驗。
但為聲請之當事人應釋明有事實足以懷疑血緣關係存否者,始得為之。
命為前項之檢驗,應依醫學上認可之程序及方法行之,並應注意受檢驗人之身體、健康及名譽。
法院為第一項裁定前,應使當事人或關係人有陳述意見之機會。

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