Background
In June 2019, then-Officer Joshua Carroll responded to a welfare call reporting a suspicious vehicle at an apartment complex. During the encounter with the occupant (pseudonymized as “Sparks”), Carroll requested non-emergency backup, then escalated to requesting urgent backup. After issuing contradictory commands to Sparks, Carroll opened the car door and physically grabbed Sparks to remove him from the vehicle—the first physical contact. A struggle ensued during which Carroll repeatedly tasered Sparks, struck him in the head with his fists and taser, and continued striking him even after Sparks was fully handcuffed. Sparks suffered a head wound requiring three staples.
Carroll was indicted for aggravated assault under Arizona Revised Statutes § 13-1204(A)(4) for using force against a physically restrained victim. At trial, expert testimony conflicted: Carroll’s expert testified his fear was reasonable and his force justified; the State’s experts testified Carroll escalated unnecessarily, contradicted himself with confusing commands, and should have waited for backup instead of initiating physical contact with a compliant suspect.
The jury deadlocked and the judge declared a mistrial. The parties then agreed to submit the case for a bench verdict. The trial court found Carroll guilty, concluding the State proved beyond a reasonable doubt that Carroll’s force was greater than reasonably necessary and that his actions were not justified. Carroll received one year of supervised probation and appealed.
The Court’s Holding
The Arizona Court of Appeals affirmed the conviction. The court found sufficient evidence that Carroll intentionally caused physical injury to a victim whose capacity to resist was substantially impaired—satisfying the statutory elements of aggravated assault under § 13-1204(A)(4). The court focused on the undisputed fact that Carroll repeatedly struck Sparks with his fists and taser while Sparks was handcuffed, causing bleeding head injuries.
On Carroll’s self-defense justifications, the court rejected both his general self-defense claim and his law enforcement self-defense claim under § 13-409. The court held sufficient evidence supported the finding that Carroll’s force was greater than reasonably necessary and that the use of force was entirely unnecessary. Critically, the court emphasized that Carroll—despite instructing Sparks to remain in the car—chose not to wait for backup and instead escalated by opening the door and initiating physical contact with a compliant suspect. This escalation, combined with confusing and contradictory commands that “needlessly exacerbated the situation,” undermined any claim of justified force.
The court rejected Carroll’s invocation of Fourth Amendment cases like Graham v. Connor and Marquez v. City of Phoenix, noting those concern constitutional challenges to officer conduct analyzed under an “objective reasonableness” standard. Here, Carroll faced a criminal charge requiring the State to disprove his statutory justification defenses beyond a reasonable doubt—a different legal framework than constitutional civil litigation.
Key Takeaways
- Officers cannot use force that is greater than reasonably necessary to effect an arrest, even if they subjectively feared danger or believed force was justified.
- Continuing to strike a suspect who is already subdued and handcuffed constitutes aggravated assault; the victim’s restrained status aggravates the offense.
- An officer’s decision to escalate (opening a car door, initiating physical contact) rather than wait for available backup—especially moments after the suspect was complying with orders—supports a finding that force was unnecessary and not justified.
- Contradictory commands and confusing tactics that exacerbate a situation can be evidence against an officer’s claim that force was reasonably necessary to manage the encounter.
Why It Matters
This decision provides meaningful accountability for law enforcement officers who use excessive force. By affirming a criminal conviction for aggravated assault rather than analyzing the conduct solely through a Fourth Amendment lens, the court establishes that state criminal law—not just constitutional doctrine—can hold officers accountable for force that exceeds what circumstances required. The decision emphasizes that officers have a duty to avoid unnecessarily escalating encounters and that choosing to wait for backup, rather than acting alone, is a relevant factor in assessing whether force was justified.
For prosecutors, defense counsel, and police agencies, the case clarifies that prolonged strikes against a restrained suspect provide substantial, readily provable evidence of aggravated assault. For officers, it reinforces that tactical patience—waiting for backup when available and maintaining clear, consistent communication—is not weakness but a legally-recognized component of reasonable force decisions.