A breach of duty happens when a person or company fails to act with the level of care that the law requires under the circumstances.

In a negligence case, this is the step that asks whether the defendant's conduct fell below what a reasonably careful person, driver, property owner, employer, or business would have done. A driver who speeds past a logging truck on a rural Arkansas road without enough visibility, a trucking company that ignores maintenance defects, or a plant operator that leaves a known machine hazard unguarded can all be accused of breaching a duty of care. The exact duty depends on the relationship and the risk, but the core question is the same: was the conduct unreasonable and unsafe?

For an injury claim, proving a breach of duty is essential because duty alone is not enough. The injured person must show both the breach and causation - that the unsafe act or omission actually led to the injury and measurable damages. Evidence often includes crash reports, inspection records, video, witness statements, training logs, and expert opinions.

In Arkansas, breach of duty also interacts with comparative fault. Under Ark. Code Ann. § 16-64-122 (2024), a claimant can recover damages only if their fault is less than the defendant's; at 50% or more, recovery is barred. That makes the proof of who breached a duty, and by how much, financially decisive.