United States v. Barber — Sixth Circuit upheld drug convictions and a 150-month sentence

Case
United States of America v. Tianna Barber
Court
U.S. Court of Appeals for the Sixth Circuit
Judge
BOGGS (Ronald Reagan, 1986); Kethledge (George W. Bush, 2008); THAPAR (Donald Trump, 2017)
Date Decided
August 14, 2026
Docket No.
25-3245
Topics
Drug Conspiracy; Expert Testimony; Confrontation Clause; Sentencing Guidelines
Source
Read the full opinion

Background

Federal agents investigating a drug organization supplied by a Mexican cartel learned that Tianna Barber was assisting Derrick Murphy, including while Murphy was jailed. Evidence showed that Barber relayed messages, negotiated drug prices, stored drugs, collected and transported proceeds, purchased a rifle later given to Murphy, and sold methamphetamine and fentanyl disguised as prescription pills.

A jury convicted Barber of drug conspiracy, methamphetamine distribution, heroin possession with intent to distribute, and one count of using a telephone to facilitate a drug felony. At sentencing, the district court adopted drug quantities in the presentence report that exceeded the quantities reflected in the jury’s verdict, calculated a Guidelines range of 262 to 327 months, and imposed a below-Guidelines sentence of 150 months.

On appeal, Barber challenged an agent’s interpretations of recorded conversations, the admission of a controlled-buy video containing statements by a confidential source who did not testify, and the district court’s use of the higher drug quantities when calculating her Guidelines range.

The Court’s Holding

The Sixth Circuit affirmed. Reviewing Barber’s newly asserted challenge to the agent’s testimony for plain error, the court held that the agent was qualified by extensive narcotics-investigation experience to interpret drug jargon and coded language. Although three interpretations of seemingly ordinary phrases presented a closer question, any error was neither clear nor prejudicial given the substantial additional evidence of Barber’s guilt.

The court also found no Confrontation Clause violation from the controlled-buy video. Barber’s statements were opposing-party statements, Murphy’s were coconspirator statements made during and in furtherance of the conspiracy, and the confidential source’s statements were admitted to provide context for Barber’s and Murphy’s responses rather than for their truth. The source’s remarks therefore were not testimonial hearsay barred by the Sixth Amendment.

Finally, the court held that the district court did not plainly err in calculating the Guidelines range. Even assuming the higher drug quantities constituted acquitted conduct, the Guidelines permitted their consideration as conduct that also established, in whole or in part, Barber’s lesser-included offenses of conviction. Judge Thapar separately reasoned that the higher quantities were not acquitted conduct because the jury never unanimously found that Barber’s crimes did not involve them.

Key Takeaways

  • A properly qualified law-enforcement expert may interpret drug slang and coded conversations, but may not merely tell the jury how to understand ordinary English.
  • A non-testifying participant’s recorded statements do not implicate the Confrontation Clause when introduced only to place a defendant’s admissible responses in context.
  • Under the Guidelines provision applied here, conduct overlapping with the offenses of conviction could support the sentencing drug-quantity calculation even if it also underlay aggravated charges not established by the verdict.

Why It Matters

The decision clarifies the Sixth Circuit’s distinction between permissible expert translation of drug jargon and impermissible interpretation of ordinary language. It also reinforces that contextual statements on recordings are outside the Confrontation Clause when they are not offered for their truth.

For sentencing practitioners, the opinion addresses how the Guidelines’ acquitted-conduct restriction interacts with higher drug quantities that overlap with lesser-included offenses of conviction. The majority relied on the Guidelines’ overlapping-conduct rule, while Judge Thapar’s concurrence offered a narrower rationale based on the absence of a unanimous acquittal concerning the higher quantities.

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