The Georgia Court of Appeals has reversed a lower court's decision that barred a forensic toxicologist from testifying in a serious injury case involving Austin Luke Bradley. The ruling, filed on October 14, 2026, affects Bradley, who faces multiple charges stemming from a vehicle collision that resulted in serious injuries to three people. The decision is significant as it addresses the qualifications of expert witnesses in DUI cases and the admissibility of their testimony.
The case began when the State charged Bradley with 24 counts of serious injury by vehicle, four counts of driving under the influence (DUI) to the extent he was less-safe to drive, and one count of failure to maintain his lane of travel. The charges arose from an accident on April 13, 2023, when Bradley's vehicle crossed into oncoming traffic, colliding with another vehicle. The three occupants of that vehicle sustained serious injuries.
In response to the charges, Bradley filed a pretrial motion to prohibit the State's forensic toxicologist from testifying about pharmacological issues. He argued that while the toxicologist could testify about the drugs found in his blood, she was not qualified to discuss how those drugs affect the average person. Bradley also sought to suppress the seizure of his medical records, claiming the search warrant lacked the necessary specificity. The trial court granted Bradley's motion to exclude the toxicologist's testimony but denied his motion to suppress the medical records.
The State appealed the ruling that excluded the toxicologist's testimony, arguing that she was qualified to provide expert testimony on the general effects of drugs. Bradley cross-appealed the denial of his motion to suppress the medical records. The Court of Appeals reviewed both cases and issued a combined opinion.
In its ruling, the court determined that the trial court had erred in excluding the toxicologist's testimony. The court stated, "The trial court abused its discretion in ruling that the GBI forensic toxicologist was not qualified to testify on the effects of drugs on the human body generally." The court emphasized that the toxicologist had extensive training and experience in toxicology and pharmacology, which qualified her to testify about the general effects of drugs.
The court noted that the toxicologist had a degree in forensic chemistry and had completed a rigorous training program that included pharmacology. The court found that the trial court had incorrectly focused on the toxicologist's lack of a specific degree in pharmacology rather than her qualifications and experience in the field. The court highlighted that the factual basis of an expert opinion goes to the credibility of the testimony, not its admissibility.
As for the motion to suppress the medical records, the court affirmed the trial court's decision. The court found that the search warrant was sufficiently specific and that the affidavit supporting the warrant provided probable cause. The court noted that the warrant was narrowly drafted to seek only medical records related to Bradley's treatment on the day of the accident. It stated, "The warrant here was narrowly drafted to seize only his medical records from the hospital that were specifically related to his treatment on the day of the accident."
The ruling has significant implications for future DUI cases and the use of expert testimony. By reversing the trial court's decision regarding the toxicologist, the Court of Appeals has reinforced the importance of allowing qualified experts to testify about the effects of drugs on individuals, which can be crucial in determining liability in DUI cases.
The court's decision also clarifies the standards for the admissibility of expert testimony in Georgia, aligning them more closely with federal standards. This ruling may influence how courts in Georgia handle similar cases in the future, particularly those involving drug-related charges.
Looking ahead, it is unclear whether Bradley will appeal the ruling further. The court's decision allows for the toxicologist's testimony to be included in the upcoming trial, which could significantly impact the case's outcome. The court's ruling may also set a precedent for how expert testimony is handled in DUI cases moving forward.











