Enforcement Rules of the Control Act Article 29

Agencies entrusted to conduct investigation according to Article 30 of the Act shall promptly conduct the investigation and submit a written response on its findings to the Control Yuan. The Control Yuan may send a written demand for response if no response is received within two months.
中文原文 監察法施行細則第29條
依本法第三十條委託調查之案件,受委託之機關應即進行調查,並將調查結果以書面答復監察院,如逾兩個月尚未答復者,由監察院函催之。

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