8.1 Negligence, Torts, and Legal Liability
Key Takeaways
- Liability insurance only responds when the insured is legally obligated to pay; legal liability arises from tort, contract, or statute.
- Negligence is the unintentional tort that liability policies are designed to cover; intentional/expected injury is excluded.
- All four elements — duty, breach, proximate cause, and damages — must be proven for a negligence claim to succeed.
- Negligence per se (statute violation) and res ipsa loquitur (the thing speaks for itself) ease the claimant's proof burden.
- The standard of care is that of a reasonably prudent person; professionals are held to their peers' higher standard.
Negligence, Torts, and Legal Liability
Liability insurance pays for sums an insured becomes legally obligated to pay to a third party. Before any policy responds, the law must first impose that obligation. Almost every property and casualty exam opens its casualty section here because the insuring agreement of a Commercial General Liability (CGL) form, ISO form CG 00 01 04 13, promises to pay damages the insured is "legally obligated to pay because of bodily injury or property damage." No legal liability means no coverage.
Three sources of legal liability
Legal liability arises from three branches of law, and the exam expects you to sort a fact pattern into the right one:
- Tort — a civil wrong, other than breach of contract, for which the law allows a remedy. Most liability claims are torts.
- Contract — liability assumed by agreement (a lease, a hold-harmless clause). Insured under the CGL only if it is an insured contract.
- Statute — liability imposed by law regardless of fault, such as workers compensation or dram shop statutes.
The two kinds of torts
Torts split into intentional torts (assault, libel, slander, false arrest) and unintentional torts, which is negligence. Liability policies are built to cover negligence and the accidental harm it causes. They generally exclude expected or intended injury — the CGL excludes bodily injury or property damage "expected or intended from the standpoint of the insured." The trap: an intentional act can still produce a covered claim if the resulting injury was not intended, but a deliberate punch to the face is not covered.
The four elements of negligence
To win a negligence suit, the claimant must prove all four elements. Miss one and the case fails — a favorite exam point.
| Element | Plain-English meaning | Example |
|---|---|---|
| Duty of care | A legal obligation to act reasonably toward others | A store must keep aisles safe |
| Breach of duty | Failure to meet that standard of care | Leaving a spill unattended |
| Proximate cause | An unbroken causal chain from breach to harm | The spill directly causes the fall |
| Damages | Actual, measurable injury or loss | Broken wrist, medical bills |
The standard of care is that of a reasonably prudent person under like circumstances. Professionals (doctors, agents) are held to the higher standard of their peers — the foundation of professional liability.
Proximate cause vs. remote cause
Proximate cause is the cause that, in a natural and continuous sequence unbroken by an intervening event, produces the injury. A remote cause is too far removed to support liability. If an intervening cause (a third party's independent act) breaks the chain, the original wrongdoer may be relieved of liability. Memorize the order: duty, breach, causation, damages — sometimes shortened to the four D's framing, but the causation link is what most questions probe.
Negligence per se and res ipsa loquitur
Two doctrines shift or ease the proof burden:
- Negligence per se — violating a safety statute (running a red light) is treated as negligence automatically; the claimant need not separately prove the standard of care.
- Res ipsa loquitur ("the thing speaks for itself") — when harm would not normally occur without negligence and the instrument was under the defendant's exclusive control (a surgical sponge left inside a patient), negligence is inferred.
Degrees of negligence and the burden of proof
Courts also grade the seriousness of the conduct, which affects damages and whether punitive awards attach:
- Ordinary negligence — failure to use reasonable care; the baseline most claims rest on.
- Gross negligence — reckless disregard for the safety of others; can open the door to punitive damages.
- Willful and wanton — conscious indifference bordering on intent; may void coverage.
In civil negligence cases the claimant must prove each element by a preponderance of the evidence (more likely than not), a lower bar than the "beyond a reasonable doubt" standard used in criminal law. This is why an insured can be acquitted of a crime yet still be found liable in a civil suit arising from the same event.
Why this matters to coverage and pricing
Underwriters translate negligence exposure into premium through loss frequency (how often claims occur) and loss severity (how large they are). A business with poor housekeeping has high frequency; a manufacturer of a dangerous product has high severity. The CGL responds to the legally-imposed result, but the policy's duty to defend is even broader than its duty to pay: the insurer must defend any suit seeking covered damages even if the allegations are groundless, false, or fraudulent. Defense costs are usually paid in addition to the limits, which is why even a defensible negligence claim has real value to the insured.
A customer slips on an unmarked wet floor in a grocery store and breaks an ankle, incurring $9,000 in medical bills. Which of the four elements of negligence is satisfied by the $9,000 in medical bills?
Under the CGL insuring agreement (CG 00 01), the insurer agrees to pay sums the insured becomes legally obligated to pay because of bodily injury or property damage. Which type of harm is most clearly EXCLUDED?
The Four Elements of Negligence - All Four Required
Legal liability in insurance almost always rests on negligence, and the exam expects you to identify the four elements that a plaintiff must prove. Missing any one defeats the claim.
| Element | What the plaintiff must show |
|---|---|
| Duty | The defendant owed a legal duty of care |
| Breach | The defendant breached that duty (acted unreasonably) |
| Causation | The breach was the proximate cause of the harm |
| Damages | The plaintiff suffered actual, measurable injury or loss |
Worked example: a store owner who fails to mop a known spill (breach of the duty to keep premises safe) causes a shopper to slip and break a wrist (causation and damages). All four elements are present, so the owner is negligent and the CGL responds.
Exam Trap: Distinguish the three tort categories. Negligence is unintentional carelessness; an intentional tort (battery, libel) is deliberate and usually excluded; absolute/strict liability applies without fault to ultrahazardous activities (blasting, keeping wild animals, defective products) - liability attaches even when the defendant used all reasonable care.