Border Defense Corps Prior to the 2018 reform, the People's Armed Police Border Defense Corps () guarded China's land and sea borders, as well as its ports and airports. Its main responsibilities were the administration of border and coastal public security, ports and border inspection and surveillance, performing patrols and surveillance activities in areas adjacent to Hong Kong and Macao, as well as patrols and surveillance activities along the demarcation line of the Beibu Gulf and the prevention of and crack-down on illegal and criminal acts in border and coastal areas, such as illegal border crossing, smuggling and drug trafficking.
Border Defense Corps Prior to the 2018 reform, the People's Armed Police Border Defense Corps () guarded China's land and sea borders, as well as its ports and airports. Its main responsibilities were the administration of border and coastal public security ports and border inspection and surveillance, performing patrols and surveillance activities in areas adjacent to Hong Kong and Macao, as well as patrols and surveillance activities along the demarcation line of the Beibu Gulf and the prevention of and crack-down on illegal and criminal acts in border and coastal areas, such as illegal border crossing smuggling and drug trafficking.