The Fourth Circuit affirmed Tamarcus Ellis’s conviction for drug trafficking, holding that the district court’s partial closure of the courtroom during one witness’s testimony did not violate the Sixth Amendment’s Public Trial Clause. While the court acknowledged that a violation of this right constitutes structural error requiring a new trial, it applied a modified version of the *Waller* test tailored to partial closures—where the exclusion is limited in scope or duration rather than total. Under this relaxed standard, the court required only a “substantial reason” for the closure, rather than an “overriding interest,” while still mandating that the closure be no broader than necessary, that reasonable alternatives be considered, and that adequate findings be made. The court found that the district court satisfied these requirements based on specific evidence of potential witness intimidation. The record showed that a U.S. Marshal reported spectators clicking their teeth and rocking in the gallery during a cooperating witness’s prior testimony, conduct perceived as signaling disagreement. The district court acted to protect the witness from this intimidation and maintain order, limiting the closure to approximately one hour for the remainder of the witness’s direct examination and cross-examination. The court further found the closure was narrowly tailored because it excluded only unidentified members of the public while allowing the defendant’s family and defense counsel’s parents to remain, and that the court considered alternatives by initially contemplating a total closure before adopting this more limited approach. Additionally, the district court made sufficient findings on the record through its inquiries with the Marshal, government counsel, and defense counsel regarding the witness’s demeanor and the alleged conduct. The practical consequence of this decision is that Ellis’s conviction and 480-month sentence stand, and no new trial is ordered. The appellate court rejected Ellis’s argument that the closure was trivial or that it automatically mandated reversal, concluding instead that the district court’s actions were a justified response to a substantial reason for protecting the integrity of the trial process.