South Dakota stands alone in applying a slight-versus-gross negligence standard where a drunk driving victim recovers only if the victim's own negligence qualifies as 'slight' compared to the impaired driver's 'gross' negligence.
South Dakota's Slight-Versus-Gross Negligence Rule in DUI Cases
South Dakota applies a distinctive comparative negligence standard: a victim recovers only if the victim's own fault qualifies as 'slight' in comparison to the other party's 'gross' negligence. This framework is unique among all fifty states and the District of Columbia.
For drunk driving victims, the slight-versus-gross standard can cut in your favor. Driving while intoxicated is widely recognized as a serious breach of duty, and courts often characterize it as gross negligence on its face. If the victim's own contributing conduct — such as a minor speeding violation or a delayed reaction — is truly minor in comparison, the 'slight' characterization should hold. The challenge lies in the inherent subjectivity of these terms, which gives each case a fact-specific outcome.
Building a Slight-Versus-Gross Case After a DUI Crash
Proving that your negligence was 'slight' in comparison to the drunk driver's 'gross' negligence in South Dakota requires a qualitative argument backed by concrete facts. The BAC results from the criminal proceeding are your strongest starting point — a reading well above the legal limit speaks directly to the gross nature of the driver's conduct.
Layer the analysis with evidence of your own lawful behavior. If you were traveling at or below the speed limit, obeying traffic signals, and maintaining your lane, each fact reinforces the 'slight' characterization. Medical records, scene photographs, and witness testimony round out the picture. Because South Dakota's standard is inherently subjective, the more complete the factual record, the less room the insurer has to argue that your fault rises above 'slight.'
A worked example with South Dakota’s rule applied
Take a drunk driving crash claim with documented losses like these:
| Medical bills | $17,800 |
| Lost wages | $1,900 |
| Other out-of-pocket costs | $1,150 |
| Pain and suffering (3.5× medical) | $62,300 |
| Gross value before fault | $83,150 |
South Dakota’s slight/gross rule is the outlier: this claim survives only if your negligence was ‘slight’ compared with the other side’s. There is no tidy percentage — courts read the facts. With gross value at $83,150, the practical lesson is that any evidence framing your role as minimal carries more weight here than in any percentage state.
Punitive Damages and Dram Shop Liability in Drunk Driving Victim Claims
Beyond standard compensatory damages, a drunk driving victim in South Dakota may pursue punitive damages against the impaired driver and, in some circumstances, a dram shop claim against the establishment that served the alcohol. Punitive damages are designed to punish conduct that goes beyond ordinary negligence — and choosing to drive with a blood-alcohol level above the legal limit often satisfies that standard.
Dram shop claims add a second defendant. If the driver consumed alcohol at a licensed establishment and was served while visibly intoxicated, the victim may hold that business accountable for its role in the chain of events. Evidence for both theories deteriorates quickly — surveillance footage is overwritten, witnesses relocate, and records are discarded. Preserving this evidence is a time-sensitive priority in every DUI victim case.
Before you rely on any number here
This page is general information, not legal advice. Nothing on drunkdrivingaccidentlawyer.us creates an attorney–client relationship, and no estimate produced by the calculator is a valuation, a prediction or an offer.
DrunkDrivingAccidentLawyer.us is an independent informational website operated by Mustafa Bilgic, an individual who is not a licensed attorney and does not run a law firm. We do not accept cases, review documents, negotiate with insurers or refer you to a particular lawyer.
Deadlines, fault rules, damage caps and insurance requirements differ by state and change over time, and a missed deadline can end a valid claim permanently. Consult a licensed attorney in your state before you accept, reject or file anything. To find one independently, use your state bar’s referral service or the American Bar Association’s Find Legal Help directory.
Questions
South Dakota questions
What does 'slight' negligence mean under South Dakota's fault rule?
South Dakota does not define 'slight' with a specific percentage. It is a qualitative standard — the jury decides whether your conduct was minor compared to the other party's gross negligence. In drunk driving cases, a victim who was obeying traffic laws at the time of the crash is well-positioned to meet this standard.
Is drunk driving automatically considered 'gross' negligence in South Dakota?
Courts frequently treat impaired driving as gross negligence because it involves a conscious choice to engage in dangerous behavior. A high BAC reading, erratic driving before the crash, and prior DUI history all strengthen that characterization. No conduct is automatically classified, though — the jury evaluates the specific facts of each case.
What if I had a minor traffic violation at the time of the crash in South Dakota?
A minor violation — such as slightly exceeding the speed limit or failing to signal — is exactly the type of conduct that courts may classify as 'slight' negligence when compared to the gross negligence of driving under the influence. The contrast between a minor infraction and deliberate impairment is often sufficient to preserve the victim's claim.
- Sources: state comparative-fault statutes · Insurance Information Institute · Bureau of Labor Statistics · IRS Pub. 4345 · NHTSA
- Last reviewed 2026-08-25. Statutes, caps and fault rules change — re-check anything time-sensitive with a licensed attorney.