I think if your I-485 documents can\'t establish for sure your visa status history (or if something is unclear from the submitted evidence), they flag your file for interview at the local center.
Not sure, though - my guess only based upon one such case.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.