Criminal background papers from hometown or current city?

[pinoy0320]

My wife is from Haerbin and her hukou is from there, she got her criminal background documents from there. Currently, she's been living in Shanghai for 3 years. Is the papers from her hometown enough? Or do we need background checks from both cities? Thank you all in advance.

 

Regards.

[dnoblett]

Criminal record is based on Hukou, will need to get this from there, it covers all of China.