Here you go.
III.
General Employment Policy (GEP)
Eligibility Criteria
20. Applicants who are not non-local graduates but possess special skills, knowledge or experience of value to and not readily available in the HKSAR may apply to come to work under the GEP.
21. An application for a visa/ entry permit to take up employment under the GEP may be favourably considered if:
- there is no security objection and no known record of serious crime in respect of the applicant;
- the applicant has a good education background, normally a first degree in the relevant field, but in special circumstances, good technical qualifications, proven professional abilities and/or relevant experience and achievements supported by documentary evidence may also be accepted;
- there is a genuine job vacancy;
- the applicant has a confirmed offer of employment and is employed in a job relevant to his academic qualifications or working experience that cannot be readily taken up by the local work force; and
- the remuneration package including income, accommodation, medical and other fringe benefits is broadly commensurate with the prevailing market level for professionals in the HKSAR.
The Government of the Hong Kong Special Administrative Region - Immigration Department
As people keep saying, CX tried it on, the HKG immigration said no but were surprisingly forgiving for a government agency and allowed those already in the system to continue.
For the moment and foreseeable future you need a permanent HKID if applying for ab-initio as you bring no skill or experience that can't be found locally.
To be honest I think CX are still pushing it a bit with regard to number 2 and only a CPL/IR and 250hrs requirement.