United States v. Firishchak, 468 F.3d 1015 (7th Cir. Nov. 20, 2006) (affirming district court denaturalization order based on service in the Ukrainian Auxiliary Police (UAP) during World War II and failure to disclose it in 1949 visa application, and rejecting claims that documents evidencing UAP service were inadmissible; it was an abuse of discretion to permit certain expert testimony on a subject that was not disclosed in a pre-trial expert report; he should have been granted a continuance; the evidence against him was insufficient; and he was denied a fair trial).
http://caselaw.lp.findlaw.com/data2/circs/7th/053852p.pdf