What is the test for abuse of cross-examination?

Head argues the district court erred by granting the government's motion in limine to restrict his cross-examination of two witnesses concerning civil litigation which had occurred between them. We review for abuse of discretion the district court's decision to limit the scope and extent of cross-examination. United States v. Dischner, 974 F.2d 1502, 1514 n. 12 (9th Cir.1992), cert. denied, 113 S.Ct. 1290 (1993).

Our review of the record indicates appellant had more than ample opportunity to cross-examine each of the witnesses regarding their possible bias towards him as a result of other litigation. "Generally, once cross-examination reveals sufficient information with which to appraise a witness's possible bias and motives, confrontation demands have been satisfied." United States v. Bonanno, 852 F.2d 434, 439 (9th Cir.1988), cert. denied, 488 U.S. 1016 (1989). See also United States v. Lopez-Alvarez, 970 F.2d 583, 587 (9th Cir.), cert. denied, 113 S.Ct. 504 (1992).