For overseas workers, a. it is quite difficult for foreigners to get a working visa in China (though I suppose it's more of an immigration issue rather than the

For overseas workers, a. it is quite difficult for foreigners to get a working visa in China (though I suppose it's more of an immigration issue rather than the country being authoritarian); b. companies would probably use their passports. So you're kind of correct. However, my point still holds: fingerprints for interviewees, even in China, is at best extremely uncommon, and at worst (?) illegal in most cases. Btw, I am nitpicking here, but by universal I meant used across the whole country, i.e. national.