Appeals court weighs whether officer testimony and body-cam video prejudiced Brown's trial

Salt Lake City oral argument: The Utah Court of Appeals heard a criminal appeal in State v. Brown in which defense counsel argued two primary grounds for reversal: (1) inadmissible expert- or opinion-style testimony by a detective that the earlier vehicle "ramming" constituted criminal mischief rather than aggravated assault, which defense counsel said improperly supplied a legal conclusion in violation of rules governing opinion testimony; and (2) ineffective assistance of counsel for stipulating to and using a graphic body-cam video that defense counsel contended had high prejudicial effect and did not materially serve the chosen defense strategy.

Defense counsel Sarah Carlquist opened the argument: "May it please the court, Sarah Carlquist on behalf of Patrick Brown. We raised 3 issues that we contend entitle mister Brown to a new trial and we've raised a fourth issue in the alternative. I'd like to begin with the issue related to detectives inadmissible testimony." Carlquist told the panel the detective's testimony was inadmissible under rules 701, 702 and 704 and that the prosecutor repeatedly relied on that testimony in closing, which she said undermined the jury's determination and prejudiced Brown.

The defense argued the disputed testimony and the prosecutor's closing emphasizing the officers' legal characterization of the ramming event caused the jury to credit the defendant's imperfect self-defense claim as reasonable while still concluding the use of force was not legally justified. Counsel emphasized that the prosecutor had argued the officers told the jury the damage to the other vehicle was "consistent with road rage, criminal mischief," and that the record included a police interview in which Brown described his actions. Counsel said the detective's statements were impermissible legal conclusions under State v. Davis and Rule 704 and that the cumulative effect of those statements and the video undermined confidence in the verdict.

The state, represented by Jeff Mann, urged harmlessness and argued that the defendant admitted key facts and that other officers gave similar testimony (making the detective's statements cumulative). Mann also said the video was stipulated before trial, that defense counsel used the video in opening to portray the scene's chaos and to support a defense theory about how a gun could have been moved on scene, and that the defendant secured a manslaughter conviction instead of a greater charge. Mann argued that even without the detective's testimony, there was not a reasonable probability of a more favorable verdict for Brown on the claim of perfect self-defense.

Panel questioning focused on legal contours. Judges asked whether an earlier ramming that had concluded before the shooting could supply a lawful basis for deadly force; both sides agreed that a completed assault could not itself justify later use of deadly force but disagreed about whether the detective's testimony misled the jury about how the self-defense instructions applied. The court and counsel also discussed Rule 704's scope (opinion testimony that embraces an ultimate issue) and Utah precedent about impermissible legal-conclusion testimony.

On the ineffective-assistance claim, defense counsel said trial counsel's pretrial stipulation to and subsequent use of the body-cam footage was objectively unreasonable because the video showed graphic first-person CPR and a child's screams that, in the defense view, risked unfair prejudice that outweighed probative value. The state responded that counsel had a stated strategy in opening to show the chaotic scene, that the video was a key piece of evidence to support that defense and that the record does not establish deficient performance under Strickland.

The court did not rule from the bench; it recessed and said it would issue a decision in writing.