I have heard vague rumors of criminal background checks being required for foreigners working in China. I don't remember ever dealing with this when I worked there in the early 2000's, but now I see some employers asking for some form of background check.
Why do some jobs ask for this while others don't? For an American, does it entail getting an FBI background check with an apostille as is required for Korea, or can I get away with something simpler like a check from a local police station?
I don't have any criminal record, but I am worried that this could delay my return to China more than I intended. Thanks in advance for any suggestions.