Since he came back after being deported or "sent to Mexico", he has triggered the permanent bar. What it means is that he has to go back to Mexico for 10 years before he can come back on your petition. At that time, he will still need a waiver if he was deported. (He may also need a criminal waiver depending on the criminal statute he was convicted under). I do recommend that you see a competent attorney to explore other ways to help you including but not limited to U.S. visa if he was a victim of a crime.
Answered on Nov 13th, 2013 at 1:28 PM