United States v. Gilberto Baldenegro-Valdez, 703 F.3d 1117

Defendants Baldenegro-Valdez and Camarena were convicted at a joint trial of conspiracy to distribute methamphetamine stemming from multi-location controlled buys led by Espana, who wore a wire.
Espana arranged a one-ounce and a later one-pound meth purchase; during the latter, meth was found in Espana’s car and in Baldenegro-Valdez’s vehicle following a stop and search.
Baldenegro-Valdez admitted participation in multiple meth transactions and implicated Camarena as the source; Camarena did not speak with police during the stop.
Baldenegro-Valdez challenged suppression of the Taurus stop/search and post-arrest statements, and moved in limine to exclude evidence and translations; the district court denied these motions.
At trial, the defense sought broader impeachment of Espana and tailored jury instructions; the court limited cross-examination and denied the proffered instructions, leading to post-trial appeals on Sixth Amendment and evidentiary issues.
The district court ultimately denied motions for mistrial and refused to give certain defense jury instructions; the jury convicted both defendants.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether Sixth Amendment cross-exam limitation biased the trial	Camarena argues cross-exam limits impaired impeachment for bias.	Camarena contends the limitations prevented full inquiry into Espana's credibility.	No abuse; limits permitted adequate impeachment.
Whether the district court should have given Camarena's credibility instruction	Camarena argues the court erred by not instructing on Espana's credibility.	Court gave alternative instruction adequately covering credibility considerations.	No reversible error; instruction was adequate.
Whether Baldenegro-Valdez's suppression and related evidentiary rulings were correct	Baldenegro-Valdez argues stop/search, arrest, and statements should have been suppressed and ruled inadmissible.	Evidence was admissible under reasonable suspicion, probable cause, and inventory/automobile exceptions.	Suppression denied; evidence properly admitted.
Whether mistrial and procedural references required reversal	Baldenegro-Valdez alleges mistrial due to perjury claim and prosecutor's reference to a suppression hearing.	Court properly denied mistrial; curative actions mitigated prejudice.	No mistrial; arguments and references deemed not prejudicial.

United States v. Street, 548 F.3d 618 (8th Cir. 2008) (limit cross-examination to avoid collateral issues)
United States v. Dale, 614 F.3d 942 (8th Cir. 2010) (adequate opportunity to impeach with bias evidence)
Delaware v. Van Arsdall, 475 U.S. 673 (1986) (Confrontation Clause allows reasonable limits on cross-examination)
United States v. Walley, 567 F.3d 354 (8th Cir. 2009) (no Sixth Amendment violation where cooperation context limited trial arguments)
United States v. Brown, 478 F.3d 926 (8th Cir. 2007) (limits on technical sentencing arguments are permissible)
United States v. Meads, 479 F.3d 598 (8th Cir. 2007) (proper instruction state law and evidence support credibility evaluation)
United States v. Payton, 636 F.3d 1027 (8th Cir. 2011) (instructions fairly submit credibility and other issues)
United States v. Chauncey, 420 F.3d 864 (8th Cir. 2005) (probable cause and ongoing conduct support search decisions)
United States v. Hambrick, 630 F.3d 742 (8th Cir. 2011) (probable cause for vehicle search under automobile exception)
Kastigar v. United States, 406 U.S. 441 (1972) (immunity and compelled testimony principles)
Virginia v. Moore, 553 U.S. 164 (2008) (arrest for traffic violations despite underlying invalid reasons)