The Regulations of Personnel Security Investigation for Participants in the National Defense Security Program Article 2

The security investigation is executed by the Ministry of National Defense, all its subordinate departments, the military forces, educational units, supervised administrative institutions and Defense Security Division. The MND has the authority to assist its’ supervised administrative institutions to execute the security investigation if necessary.
中文原文 從事及參與國防安全事務人員安全調查辦法第2條
安全調查由國防部與所屬機關(構)、部隊、學校及所監督行政法人之保防安全單位(以下簡稱保防安全單位)執行。
國防部於必要時,得協助受監督之行政法人執行安全調查事項。

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