Aircraft Flight Operation Regulations Article 194

No person may be admitted into the flight crew compartment of an aircraft except for the authorized personnel and Flight Dispatchers of the operator. However, CAA authorized personnel may be exempted from the restrictions herein this article.
中文原文 航空器飛航作業管理規則第194條
客運航空器之駕駛艙除經航空器使用人依規定允許之所屬人員及執行簽派任務人員外,其他人員不得進入。
但經民航局核准者,不在此限。

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