The Regulation Governing the Handling of Investigation Procedures for Drone Occurrence Article 4

In the event of a major aviation occurrence, the owner or operator of the drone and the relevant government agencies (institutions) shall assist and cooperate with the investigation task force and provide support requested from the Investigator-in-Charge.
中文原文 遙控無人機重大飛航事故調查作業處理規則第4條
遙控無人機重大飛航事故發生後,遙控無人機所有人或操作人及政府相關機關(構)應協助及配合專案調查小組進行作業,並應提供主任調查官提出之需求及支援。

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