Control Act Article 6

In case members of the Control Yuan impeach any public functionary who is believed guilty of violation of law or dereliction of duty, the case shall be proposed to the Yuan by at least two members.
中文原文 監察法第6條
監察委員對於公務人員認為有違法或失職之行為者,應經二人以上之提議向監察院提彈劾案。

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