Regulations Governing Employment Gold Card Permit for Foreign Specialist Professionals Article 8

Where a foreign specialist professional falls within any circumstances set out in Article 5 or the preceding Article, and the approval of Employment Gold Card is revoked or rescinded, the NIA may handle the case in accordance with the provisions of the Immigration Act and the Laws and Regulations Regarding Hong Kong & Macao Affairs concerning compulsory departure (deportation) and detention.
中文原文 外國特定專業人才申請就業金卡許可辦法第8條
外國特定專業人才有第五條或前條規定情形之一,經撤銷或廢止就業金卡許可者,移民署得依入出國及移民法、香港澳門關係條例關於強制(驅逐)出國(境)及收容之規定辦理。

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