By "reverse engineering" the code in the "Integrated Joint Operations Platform" (IJOP) app, HRW was able to identify the exact criteria authorities rely on to 'maintain social order.' Of note, IJOP is "central to a larger ecosystem of social monitoring and control in the region," and similar to systems being deployed throughout the entire country.
The platform targets 36 types of people for data collection, from those who have "collected money or materials for mosques with enthusiasm," to people who stop using smartphones.
[A]uthorities are collecting massive amounts of personal information—from the color of a person's car to their height down to the precise centimeter—and feeding it into the IJOP central system, linking that data to the person's national identification card number. Our analysis also shows that Xinjiang authorities consider many forms of lawful, everyday, non-violent behavior—such as "not socializing with neighbors, often avoiding using the front door"—as suspicious.