Enforcement Rules of the Control Act Article 27

Investigations shall not be terminated if the person investigated in an investigation case is under criminal investigation or trial for the same actions. Investigation may be terminated when deemed necessary to determine administrative responsibility of the defendant based on whether or not guilt is established.Investigations of personnel in charge in a case under investigation or trial and matters related to the case shall be avoided to the extent possible during the period of undertaking. However, when it is deemed that the personnel in charge has committed a serious act of corruption, malfeasance or violation of human rights and immediate investigation is needed, investigation may be conducted in consideration of the circumstances.
中文原文 監察法施行細則第27條
調查案件被調查人之同一行為在刑事偵查或審判中者,不停止調查。
但其行政責任應以犯罪成立與否為斷而認為有必要者得停止調查。
偵查或審判中案件承辦人員,與該承辦案件有關事項,在承辦期間,應盡量避免實施調查。
但如認為承辦人員有貪污瀆職或侵犯人權情節重大,需要即加調查者,仍得斟酌情形,實施調查。

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