Rules of the Air Article 5

The pilot-in-command of an aircraft shall, whether manipulating the controls or not, be responsible for the operation of the aircraft in accordance with the Rules, except that pilot-in-command may depart from these Rules in circumstances that render such departure absolutely necessary in the interests of safety.
中文原文 飛航規則第5條
機長於執行飛航任務時,不論有無親自操縱均應依本規則之規定負責航空器之安全作業。
但為確保航空器之安全,必要時得不受本規則之限制而作斷然處置。

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