In the book "Blockchain Chicken Farm", American Journalist Xiaowei Wang went to her parents' home country of China to interview various parts of the economy to get an understanding of how it works from an outsider's perspective.

In one part of the book, she goes to speak to a police chief on the topic of surveillance. She discusses with the officer the challenges of tracking migrant workers, and how in China there isn't a single ID number similar to an SSN in the states.

Towards the end of the interview, the officer, Xiaoli comments that much of the modernizing of the policing work is moving to be more "United States-Like".