Bureau 101

Its primary objective is defending the national security of China, anti-terrorism, anti-espionage, intelligence gathering, counter-intelligence operations, etc. If any Individual is identified dangerous or having ill-intent to the country, they will mark them and observe them, if they are planning something that could damage the development of China, Bureau 101 will clean up, regardless of their identity, affiliations, background and country.

In short, they are always protecting China. If someone is a treat to China's advancement and development, they are considered an enemy of the CIA.