Commonwealth v. Hutchins
Facts
Appellant turned left in front of an oncoming vehicle on a flat, straight road in sunny, clear conditions, causing a serious collision while his three young daughters were in his car. At the scene, he admitted the crash was his fault because he was distracted, denied drinking, and admitted smoking marijuana earlier that day; later at the hospital he admitted smoking half a bowl around noon. Troopers observed that Appellant was unusually calm after the crash, one trooper smelled marijuana in the car and found marijuana in the driver-side door, and Appellant's blood test showed 43 ng/ml of carboxy acid, a marijuana metabolite. No field sobriety tests were performed because Appellant left the scene with his daughters for the hospital.
Issue
Whether the evidence was sufficient to support Appellant's convictions for DUI under § 3802(d)(2) and § 3802(d)(1), and for REAP. More specifically, the court considered whether expert testimony was required to use a metabolite blood-test result to prove impairment, whether whole-blood conversion evidence was necessary for the metabolite-based DUI count, and whether intoxication plus the accident was enough to prove REAP.
Rule
Under § 3802(d)(2), the Commonwealth must prove the defendant was under the influence of a drug to a degree that impaired safe driving, and expert testimony is not categorically required; however, when the Commonwealth relies on a metabolite blood-test result to show impairment or causation, expert testimony is required because that inference is beyond ordinary lay knowledge. Under § 3802(d)(1), the statute requires only any amount of a Schedule I controlled substance or its metabolite in the individual's blood, so non-whole-blood conversion evidence is unnecessary. For REAP, intoxication does not create recklessness per se; the Commonwealth must show additional tangible indicia of unsafe driving or other reckless conduct creating a substantial risk of death or serious bodily injury.
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Is the evidence sufficient to support a conviction for driving under the influence of a drug to a degree that impaired Noah's ability to drive safely?