Hong Kong Certificate of Identity Hong Kong Certificate of Identity The Hong Kong Certificate of Identity (CI; ) was a formal travel document and passport, issued by the Hong Kong Government's Immigration Department until June 30, 1997 (See transfer of the sovereignty of Hong Kong). It is no longer possible to possess a valid CI as a travel document, as all CIs have expired by 30 June 2007, though most CI holders should be eligible to hold the HKSAR Passport. Certificates of Identity were issued to Hong Kong permanent residents who did not hold and could not obtain any valid travel documents for overseas travel.
British Forces Overseas Hong Kong internal threats. The greatest test was in 1941, when Japanese forces invaded Hong Kong, leading to the 44-month-long Japanese occupation of Hong Kong. Internal Security was the responsibility of the Hong Kong Government, in particular the Royal Hong Kong Police. It was supported by British Forces in Hong Kong should it be called upon to do so. During the Hong Kong 1967 riots, in which 51 people were killed, the British garrison supported the Royal Hong Kong Police in quelling the disturbance. Until 1995, the safety of much of the Sino-Hong Kong border was the responsibility of the British forces