2018 IL App (3d) 140961
Ill. App. Ct.2018Background
- On June 21, 2012, Brandon Mumaugh struck 12‑year‑old Jennifer Dennis while driving southbound on a dark, rural two‑lane road at about 50 mph; Jennifer sustained catastrophic brain injuries.
- Witnesses and the State’s accident reconstructionist concluded Jennifer was walking near or in the center of the roadway; one witness (Courtney) made inconsistent statements about Jennifer’s exact location.
- Police observed no signs of impairment: Mumaugh passed field sobriety tests, officers detected no cannabis odor, and no contraband was found in the vehicle; Mumaugh said he had last smoked cannabis five days earlier.
- A “hitter” pipe found at the scene contained Mumaugh’s DNA and 0.2 grams of cannabis; Mumaugh’s urine showed a THC metabolite. Under the 2012 statute, any detectable cannabis metabolite made driving per se unlawful.
- Mumaugh was convicted after a stipulated bench trial of aggravated DUI under 625 ILCS 5/11‑501(a)(6) and (d)(1)(C) (2012) (strict‑liability DUI with injury) and sentenced to two years’ imprisonment; he appealed arguing insufficiency of proximate causation and, alternatively, unconstitutionality of the strict‑liability statute.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether State proved defendant’s driving was a proximate cause of victim’s great bodily harm | Driving occurred and an accident resulted in great bodily harm; any accident while driving suffices as proximate cause | State failed to prove cause in fact and legal (foreseeability) cause because defendant drove lawfully, below speed limit, and pedestrian’s sudden unforeseeable conduct caused the injury | Reversed: State failed to prove proximate causation beyond a reasonable doubt |
| Whether the strict‑liability 2012 DUI provision (any detectable THC) violates substantive due process by criminalizing innocent conduct | Not reached on appeal (State defended statute) | Argued unconstitutional as not rationally related to public safety because it convicts unimpaired drivers | Court declined to address constitutionality after reversing on proximate cause |
Key Cases Cited
- People v. Martin, 2011 IL 109102 (Ill. 2011) (strict‑liability DUI for any detectable drug upheld; aggravated DUI requires proof that driving was proximate cause of injuries)
- People v. Fate, 159 Ill. 2d 267 (Ill. 1994) (statute creates absolute bar against driving after illegal cannabis ingestion regardless of impairment)
- First Springfield Bank & Trust v. Galman, 188 Ill. 2d 252 (Ill. 1999) (distinguishes condition from proximate cause; unforeseeable intervening act may break causal chain)
- Reuter v. Korb, 248 Ill. App. 3d 142 (Ill. App. 1993) (similar facts; pedestrian’s sudden entry in dark, rural roadway was sole proximate cause)
- People v. Quigley, 183 Ill. 2d 1 (Ill. 1998) (aggravated DUI is misdemeanor DUI plus aggravating circumstances that elevate offense)
- People v. Way, 2017 IL 120023 (Ill. 2017) (aggravated DUI requires causal link between driving and harm; defendant may raise affirmative defenses about sole cause)