police certificate for residence in US

来源: 于 2006-07-06 17:32:33 [旧帖] [给我悄悄话] 本文已被阅读：次

Hi,
I am sponsoring the immigration visa for my parents who are in China now. They came visited us in US before and stayed for 1.5 years. Do I need to get the police certificate from US for their residence in US? Thanks!