究竟曾任權有冇特區護照,個人身分證ga?

Be the Chief Executive, he is a Chinese Citizen and has HK Permanent Identity Card. He could apply for HKSAR passport for overseas travel.

For overseas travel, holding a valid passport is the minimun requirement. He is also not a foreign countries resident, therefore, he is requiring permission to land from foreign immigration authority. If he is not holding a valid passport for travel, he will be refused permission to land by the foreign immigration authority.

As you said, his secretary will take care his immigration clearance as well as his passport application, so and so.

其實佢用英國護照!d人話

咁佢做埋呢屆都唔可以再做啦，到時又點呢?

Although he may not need those things, but as a HK citizen hinself, he still HAS all of them.