Can a motion to strike a witness's testimony be sustained and denied?

The district court did not abuse its discretion in sustaining the objections and in denying appellants' motion to strike the witness's testimony. The cross-examination related to collateral matters which had no bearing on the truth of the witness's direct testimony. See, e.g., United States v. Seifert, 648 F.2d 557, 561-62 (9th Cir.1980). Moreover, none of the evidence seized in the search was used at trial. Thus, any error resulting from the district court's refusal to strike the witness's testimony was harmless.