Background
The State indicted Austin Bradley on 24 counts of serious injury by vehicle, four counts of DUI less safe, and one count of failure to maintain lane. The charges arose from an April 2023 collision in which Bradley’s truck crossed the centerline of State Highway 75 and struck a vehicle carrying three people. At the hospital, Bradley appeared drowsy and admitted taking prescription drugs and cocaine earlier that day. Testing of his blood detected several substances, including amphetamine, methamphetamine, cocaine, fentanyl, Gabapentin, promethazine, and mitragynine.
Before trial, Bradley moved to bar a GBI forensic toxicologist from testifying about the pharmacological effects of the detected drugs, although he did not object to her toxicology testimony. He also moved to suppress medical records obtained through a warrant, arguing that the warrant lacked particularity. The trial court excluded testimony about drugs’ effects on the human body generally but denied suppression. The State appealed the expert-testimony ruling, and Bradley cross-appealed the suppression ruling.
The Court’s Holding
The Court of Appeals reversed the exclusion of the toxicologist’s testimony. Applying OCGA § 24-7-702 and the Daubert standard, the court held that the toxicologist’s forensic-chemistry education, more than seven years of GBI experience, extensive toxicology training, pharmacology instruction, supervised casework, and prior expert testimony qualified her to discuss how the drugs affect people generally. She could not testify about how the drugs actually affected Bradley, but the absence of a pharmacology degree or independent clinical studies did not make her general-effects testimony inadmissible. Challenges to the factual foundation and persuasiveness of that testimony were matters for cross-examination and the jury.
The court affirmed the denial of Bradley’s motion to suppress. The warrant covered records concerning his treatment on the accident date through the end of his hospital stay, which lasted only a few hours, and connected those records to the alleged DUI, lane violation, and serious-injury-by-vehicle offenses. Because the warrant limited the records by patient, date, treatment period, and relevant offenses, it described the material to be seized with reasonable certainty and did not authorize a general search.
Key Takeaways
- A forensic toxicologist may qualify under Georgia’s Rule 702 to testify about drugs’ general effects on the human body even without a pharmacology degree or personally conducted clinical studies.
- The toxicologist could address general drug effects but could not opine on how the detected substances specifically affected Bradley.
- A warrant for hospital records satisfied the particularity requirement because it was confined to Bradley’s brief treatment following the accident and to evidence relevant to the identified driving offenses.
Why It Matters
The decision reinforces that Georgia courts must apply the amended OCGA § 24-7-702 and the federal Daubert framework in criminal cases. Trial courts may screen expert testimony for reliability, but they may not exclude a qualified expert merely because the expert’s credentials or supporting basis could be challenged as less persuasive.
The ruling also illustrates how investigators can obtain medical records without creating an impermissible general warrant: the warrant should identify the patient, narrowly define the treatment period, and connect the requested records to specified suspected crimes.