1. Immigration Department: responsible for the management of foreigners entering Hong Kong, including visa application and entry registration.
2. Hong Kong Police Force: responsible for maintaining public order and order in Hong Kong, including investigating crimes and handling emergencies.
3. Hong Kong Immigration Department: responsible for the management of Hong Kong's immigration affairs, including visa application and entry registration.
4. Hong Kong Immigration Department: responsible for the management of entry and exit affairs in Hong Kong, including visa application and entry and exit registration.
5. Hong Kong Customs: responsible for the management of import and export trade and customs clearance of goods in Hong Kong.