The Federal First Offender Act, 18 U.S.C. 3607(a)(1), does not permit an expungement if the defendant has prior to the commission of the current offense suffered a conviction under "Federal or State" law. This provision does not include foreign convictions as a disqualification for this relief.

United States v. Latu, ___ F.3d ___ (9th Cir. March 19, 2007) (federal conviction affirmed for being noncitizen illegally present in the United States [i.e., not in valid immigrant, nonimmigrant or parole status] in possession of firearms or ammunition, and removable, since 18 U.S.C. 922(g)(5)(A) is constitutional under the Commerce Clause and was properly applied in defendant's case, despite noncitizen having filed an application for adjustment of status based on U.S. citizen spouse).
http://caselaw.lp.findlaw.com/data2/circs/9th/0510815p.pdf

More Drugs Apparently Not Listed on Federal Schedules: Difenoxin (CA- Schedule I; 11054(b)(15)), Propiram (CA-Schedule I; 11054(b)(41)), Tilidine (CA-Schedule I; 11054(b)(43)), Drotebanol (CA-Schedule I; 11054(c)(9)), Alfentany (CA-Schedule II; 11055(c)(1)), Bulk dextropropoxyphene (CA- Schedule II; 11055(c)(5)), and Sufentanyl (CA-Schedule II; 11055(c)(25)).
Thanks to Lisa Weissman-Ward.

Garcia-Lopez v. Ashcroft, 334 F.3d 840 n.4 (9th Cir. June 26, 2003) (respondent's representative cannot in proceedings concede a conviction that is not a conviction: "The INS also contends that Garcia-Lopez "admitted" that he was convicted of a felony because, in support of the initial application, Garcia-Lopez's accredited representative stated that Garcia-Lopez had received a felony sentence. As an initial matter, the representative's statement was patently inaccurate, as Garcia-Lopez was never actually sentenced.

United States v. Tunning, 69 F.3d 107 (6th Cir. 1995) (''Alford'' plea refers to defendant who pleads guilty but maintains that he is innocent).

"Children Lack Capacity to Make False Claims or Misrepresentations, IJ Holds," 83 Interpreter Releases 775-776 (April 24, 2006).

United States v. Gunera, __ F.3d __, 2007 WL 456732 (5th Cir. Feb. 13, 2007) (where the defendant was "found" in the United States more than five years following the defendants unlawful re-entry, indictment was barred by statute of limitations).

Puello v. BCIS, 418 F.Supp.2d 436 (S.D.N.Y. Dec. 13, 2005) (for purposes of applying the permanent bar to good moral character for conviction of an aggravated felony, under INA 101(f), the date of conviction is the date of sentencing or the date the judgment of conviction was filed with Clerk of Court, rather than on date the guilty plea was entered).