Suing an Employer After a Workplace Altercation With a Coworker

Attorney Answer

Workers’ compensation exclusivity generally blocks a negligence suit against your employer — but it does not shield the coworker who attacked you. In Utah the exclusive-remedy bar covers accidental workplace injury; a deliberate assault is not an accident, and you may be able to sue that coworker personally for battery. Ask a Utah attorney about that claim specifically.

Utah Code § 34A-2-105 makes workers' compensation "the exclusive remedy against the employer" for an injury arising out of employment, and it replaces any other civil liability "at common law or otherwise." That protection extends beyond the company itself: the statute's exclusivity language also covers "any officer, agent, or employee of the employer," which is why a negligence claim against a coworker is barred alongside one against the business.

That list of protected people has an important limit. The Act compensates injury “by accident,” and Utah courts have long held a deliberate intentional tort falls outside it. The Utah Supreme Court stated the rule in Stamper v. Johnson, 2010 UT 26: the exclusive remedy provision applies to injuries sustained in the course of employment unless caused by intentional misconduct. And in Mounteer v. Utah Power & Light Co. the court explained that although the Act barred the negligence claims, allegations of intentional conduct “could support a direct tort claim” against the coworker — the plaintiff there lost that avenue only because he never named her as a defendant. So do not assume the coworker who assaulted you is beyond reach. A battery claim against her personally is a separate track from anything against the company, and it is not governed by the demanding standard that applies to suing an employer.

There is a narrow exception recognized by Utah courts for injuries that are truly intentional or knowing rather than accidental — but that exception isn't written into § 34A-2-105 itself, and it's a demanding, fact-specific standard. The Utah Supreme Court set out that standard in Helf v. Chevron U.S.A. Inc., 2015 UT 81, 361 P.3d 63, a decision that binds every Utah court. Helf requires proof that the employer — acting through a manager or supervisor with the relevant authority — subjectively knew or expected that the injury would occur, that it was, in the Court's words, virtually certain to result. Importantly, the Court held that this state of mind can be shown through circumstantial evidence rather than an admission, and it reversed summary judgment against the injured worker so a jury could decide what her supervisor actually knew. So the exception is narrow, but it is not unreachable. Helf also held that accepting workers' compensation benefits does not, as an election of remedies, bar you from pursuing the intentional-injury claim as well. One caution on how directly Helf fits: it involved a supervisor's direct order that caused the injury, not an employer's failure to act on known harassment by a coworker, so it gives you the governing test without deciding your facts. Knowing about prior harassment and failing to act on it doesn't automatically satisfy that standard; it depends on what the employer knew, what it did or didn't do, and how directly connected that failure was to the assault.

Separately from any civil claim, you likely have a workers' compensation claim of your own for the injury itself. Workers' compensation is generally a no-fault system, so the police report's conclusion about who "started" it doesn't control the way fault would in a negligence suit — though an insurer can still dispute the circumstances of a fight, so how the incident is documented still matters.

What you can do

1. File a workers' compensation claim with your employer's insurer promptly to cover medical treatment and lost wages from the assault. 2. Put the coworker's history of harassment against you in writing to HR now, if you haven't already, and preserve any earlier complaints or reports. 3. Gather anything showing the employer knew about the harassment before the assault — prior complaints, witness statements, HR records. 4. Ask a Utah attorney about two separate claims: a battery claim against the coworker personally, and whether the intentional-injury exception could reach the employer on your facts. 5. Expect the police report's account of who "started" the altercation to be raised, and be ready to give your own detailed written account of the sequence of events.

Time is limited. Utah imposes a deadline to file a workers' compensation claim, and that deadline depends on your specific injury date and circumstances. This answer cannot calculate it for you. Get individual review from a Utah attorney now to make sure your claim is filed on time.