## Facts

- Far W. Water & Sewer, Inc. owned and operated a sewage collection and treatment facility in Yuma County, Arizona.
- On October 24, 2001, two workers entered an underground sewage tank and died after being overcome by hydrogen sulfide gas; a third worker was severely injured during a rescue attempt.
- The State alleged the corporation, acting through senior personnel responsible for safety, failed to follow confined-space and hydrogen sulfide safety standards, despite substantial training and awareness of applicable workplace-safety rules.
- The State relied heavily on the roles and knowledge of the corporation’s president/COO and a sewage-division supervisor, who had authority over safety practices and operations at the facility.

## Issues

1. Whether the president/COO and the sewage-division supervisor qualified as “high managerial agents” under A.R.S. § 13-305, permitting their acts, omissions, and mental states to be imputed to the corporation.
2. Whether the evidence was sufficient to prove the culpable mental states required for the corporation’s convictions for negligent homicide, aggravated assault, endangerment, and knowingly violating a safety standard causing death.
3. Whether alleged errors in jury instructions on corporate liability and related evidentiary rulings required reversal.

## Decision

- The Arizona Court of Appeals affirmed the convictions and sentences.
- The court held the evidence permitted a finding that both the president/COO and the supervisor were “high managerial agents” under A.R.S. § 13-305 based on their discretionary authority over important operational and safety matters.
- The court held sufficient evidence supported the jury’s findings that the corporation, through those agents, had the required mental states for the charged offenses, including criminal negligence.
- The court found no reversible error in the challenged jury instructions or evidentiary rulings.

## Legal Principles

- Under A.R.S. § 13-305, a corporation may be criminally responsible for offenses committed through an agent; the acts and mental state of a “high managerial agent” acting within the scope of employment and on behalf of the corporation may be attributed to the corporation.
- “High managerial agent” status depends on substantial discretionary authority over significant aspects of the business, including responsibility for formulating, directing, or implementing policies such as workplace safety compliance.
- Corporate mens rea may be proven through the knowledge, responsibilities, and omissions of high managerial agents, including where specialized training and experience support an inference that the agents should have perceived (or did perceive) substantial risks.
- Criminal negligence may be established where a defendant fails to perceive a substantial and unjustifiable risk; a factfinder may consider the actor’s specialized knowledge and experience when deciding what risk should have been perceived.

## Conclusion

The court upheld corporate criminal liability where senior personnel with meaningful authority over safety and operations were treated as high managerial agents, and their training, knowledge, and failure to prevent unsafe confined-space entry provided sufficient evidence of the corporation’s culpable mental states for homicide, assault, endangerment, and a safety-standard violation causing death.


State v. Far W. Water & Sewer, Inc., 224 Ariz. 173, 228 P.3d 909 (Ct. App. 2010)