A Georgia DUI prosecution appeared to have everything needed to proceed: an arresting officer’s observations, roadside sobriety tests, and evidence of alcohol consumption. But one missing witness would become the center of a devastating courtroom dispute.
The defendant, Nataki Thomas, faced two impaired-driving charges in Clayton County, Georgia. What initially looked like a routine traffic prosecution became a challenge over whether police had legally justified the stop that began the investigation.
On December 19, 2024, Thomas was charged with driving under the influence and driving under the influence to the extent that she was less safe to drive, commonly known under Georgia law as DUI less safe.
Thomas challenged the evidence against her by filing a motion to suppress. Her defense argued that the initial traffic stop lacked sufficient legal justification, potentially making everything discovered afterward inadmissible in her criminal prosecution.
The dispute reached Judge Tammy Long-Hayward on April 13, 2026. Assistant Solicitor General Monique Adams represented the prosecution, while defense attorney Owen Lynch appeared for Thomas in a hearing that would determine the evidence’s future.
The prosecution called one witness: Officer Nathan Proctor of the Riverdale Police Department. He testified remotely through Zoom, explaining that he had served nearly five years as a certified law enforcement officer assigned to traffic enforcement.
Proctor described his responsibilities, including responding to calls, investigating traffic accidents, and conducting routine patrol duties. His experience appeared relevant because he had performed the roadside sobriety investigation that ultimately led to Thomas’s arrest.
But the first significant confrontation emerged almost immediately. When prosecutor Adams asked how Proctor became involved, defense attorney Lynch objected, anticipating that the officer would repeat statements made by someone who was not testifying.
Lynch identified the concern as hearsay. Proctor had not personally observed the original driving behavior, meaning his account of the traffic violation would depend entirely on information allegedly communicated by another law enforcement officer.
The prosecutor responded by invoking the collective knowledge doctrine. She argued that police officers may rely on information received from fellow officers when conducting investigations, even when they have not personally witnessed every relevant event.
Judge Long-Hayward initially permitted the testimony. However, the exchange exposed a distinction that would later become central: whether officers may rely on shared information during an investigation and whether that information sufficiently proves a stop was lawful.
Proctor explained that a sheriff’s deputy had contacted him seeking assistance with a suspected impaired driver. He traveled to the intersection of Upper Riverdale Road and Valley Hill Road, where the traffic stop had already occurred.
When he arrived, Proctor spoke with the deputy who had initiated the stop. According to Proctor, that deputy reported seeing Thomas’s vehicle leave its travel lane before abruptly moving back into the lane.
The deputy also reportedly detected the smell of alcohol after approaching the driver’s window. Those observations formed the original justification for suspecting an impaired driver, but the deputy himself was not present to testify.
That absence became increasingly important as the hearing continued. Proctor could describe what he personally observed after arriving, but he had no firsthand knowledge of whether Thomas actually committed the reported traffic violation.
The defense renewed its hearsay objection when Adams asked Proctor to describe what the deputy had told him. Lynch argued that repeating another officer’s statements did not necessarily establish that those statements were true.
Adams again relied on the collective knowledge doctrine, emphasizing that officers regularly exchange information while conducting investigations. She maintained that the responding officer could reasonably act upon information provided by the deputy who witnessed the incident.
The judge allowed the testimony to continue while preserving Lynch’s objection. At that stage, Proctor’s account remained part of the hearing, although the ultimate weight assigned to his secondhand statements had not been decided.
With that dispute temporarily resolved, the prosecution turned toward Proctor’s own observations. He testified that he detected a slight odor of alcohol when he approached Thomas and began conducting an impaired-driving investigation.
Thomas agreed to participate in standardized field sobriety testing. Before administering the exercises, Proctor asked questions concerning medical conditions, previous head injuries, and whether she ordinarily wore glasses or contact lenses.
Proctor first conducted the horizontal gaze nystagmus test, which examines involuntary eye movements that may be associated with impairment. He testified that Thomas displayed four of the six standardized clues during the examination.
The officer then described the one-leg stand test. According to his recollection, Thomas raised her foot behind her instead of extending it forward and placed her hands inside her pockets during the exercise.
During the walk-and-turn test, Proctor reported that Thomas missed some heel-to-toe steps and executed an improper turn. He presented these observations as additional indicators supporting his suspicion that she was impaired.
However, Proctor repeatedly acknowledged that he was testifying from memory. He did not have his written report or video recording available for reference during the hearing, despite the considerable time since the incident.
The prosecution asked about his training. Proctor confirmed receiving standardized field sobriety testing instruction during his police academy training and stated that his procedures followed standards associated with the National Highway Traffic Safety Administration.
The officer also administered a portable breath test. When the prosecution asked about the result, Lynch objected to presenting scientifically unsupported numerical evidence from the roadside device as proof of a particular alcohol concentration.
The judge permitted testimony concerning the detection of alcohol rather than a numerical measurement. Proctor subsequently confirmed that the portable breath test had indicated the presence of alcohol in Thomas’s system.
Another important detail emerged when Proctor described his conversation with Thomas. He testified that she had admitted consuming alcohol several hours before the encounter, adding another fact considered during his impaired-driving assessment.
Following the roadside investigation, Proctor read Georgia’s implied consent notice for drivers aged twenty-one or older. He testified that he read the official notice in its entirety and requested a blood sample.
The notice explained the consequences associated with refusing state-administered chemical testing and informed Thomas about her ability to obtain additional testing. According to Proctor, she agreed to provide the requested blood sample.
Based on the reported alcohol odor, sobriety test observations, and other circumstances, Proctor arrested Thomas for DUI less safe. His testimony presented the state’s justification for the arrest following the original traffic stop.
At that point, the prosecution appeared to have established several facts concerning the investigation. But the defense’s challenge did not primarily concern what Proctor observed after arriving at the scene.
Instead, Lynch focused on what had occurred before Proctor arrived. The defense maintained that the constitutional legitimacy of the entire investigation depended on whether the original deputy had sufficient reasonable suspicion to stop Thomas.
When Adams finished questioning Proctor, Lynch made an unexpected decision. He declined to cross-examine the officer altogether, despite having vigorously objected to portions of the testimony during the prosecution’s examination.
No additional witnesses appeared. Most importantly, the sheriff’s deputy who had personally observed the alleged lane departure and initiated the original stop was never called to explain the circumstances under oath.
This created an unusual situation. The court possessed detailed testimony about events following the stop, but its only description of the conduct allegedly justifying that stop came through an officer who arrived afterward.
With the evidentiary portion concluded, Lynch began his closing argument. He contended that the prosecution had failed to establish the foundational facts needed to demonstrate that the initial detention complied with constitutional requirements.
The defense argued that references to collective police knowledge could not automatically substitute for proof. Lynch emphasized that the officer who allegedly witnessed the lane violation was absent and therefore unavailable for questioning.
He also argued that the state’s reliance on hearsay was insufficient to satisfy its burden. The prosecution, he maintained, needed evidence demonstrating that specific facts justified the stop before the subsequent investigation could be considered lawful.
Georgia law placed the burden on the state to establish the legality of the challenged seizure. The relevant standard required proof by a preponderance of the evidence rather than proof beyond a reasonable doubt.
That meant the prosecution needed to persuade the judge that it was more likely than not that officers possessed sufficient reasonable suspicion when they stopped Thomas. Merely describing what happened afterward could not independently establish that fact.
Lynch stressed that Proctor’s own observations had occurred after the detention. The slight smell of alcohol, roadside exercises, and portable breath test could not retroactively supply grounds that were missing when the vehicle was originally stopped.
The attorney then explained the potential consequences. If the initial seizure was unconstitutional, evidence obtained because of that seizure could become inadmissible under the exclusionary rule and its related legal principles.
The concept is often described as the fruit of the poisonous tree. Evidence derived from an unlawful search or seizure may be excluded when the connection to the original constitutional violation has not been sufficiently broken.
For Thomas, the stakes were substantial. The prosecution’s evidence concerning alcohol consumption, sobriety testing, and the DUI investigation had all developed after the challenged stop, making the legality of that initial action especially important.
Lynch insisted that the state had failed to present adequate competent evidence establishing the alleged traffic violation. He asked Judge Long-Hayward to suppress the evidence obtained during the investigation, undermining the pending DUI prosecution.
Prosecutor Adams responded by defending the collective knowledge doctrine. She argued that reasonable suspicion could rest on information communicated by another officer who had personally witnessed a traffic violation and requested assistance.
According to Adams, the original deputy had observed Thomas’s vehicle leave its lane and return abruptly. Proctor’s later arrival did not erase that observation or invalidate the role he played in the continuing investigation.
The prosecutor emphasized that law enforcement routinely operates through shared information. She maintained that the officer conducting the roadside tests did not need to personally observe the traffic violation to participate lawfully.
Her argument drew attention to the distinction between the initial stopping officer and the officer who conducted the DUI investigation. The state maintained that the information provided by the deputy established the stop’s reasonable suspicion.
But Judge Long-Hayward was not persuaded that the prosecution had adequately established its case. She acknowledged the collective knowledge doctrine while emphasizing limits on relying exclusively on secondhand information to establish the underlying facts.
The judge examined the sequence carefully. The deputy supposedly observed the lane departure, initiated the stop, and detected alcohol. Proctor arrived afterward, received the deputy’s explanation, and conducted the sobriety investigation.
Proctor’s own observations could explain why he continued investigating possible impairment. They could not, standing alone, establish the facts that originally justified stopping Thomas before he had any contact with her.
The judge also emphasized that detecting a slight odor of alcohol did not automatically establish criminal activity. Drinking alcohol before driving was not inherently unlawful; the question was whether sufficient evidence supported the particular police action.
Without persuasive evidence establishing the original traffic violation, the court faced a significant gap. The person who could have testified directly about the vehicle’s movements had not appeared, leaving the judge to evaluate secondhand information.
Judge Long-Hayward concluded that the prosecution had not carried its burden. She determined that the evidence presented through Proctor was insufficient to establish the reasonable articulable suspicion required for the initial traffic stop.
The ruling did not accuse Proctor of deliberately mishandling his investigation. Instead, the judge emphasized that he entered the situation after the critical observations had already been made by someone else.
That distinction proved decisive. Proctor could describe his investigation, but the state had not produced the original deputy’s firsthand account to adequately support the legal basis for initiating the detention.
The judge therefore granted Thomas’s motion to suppress. Her decision excluded the evidence arising from the challenged stop, creating a major obstacle to the prosecution’s ability to proceed with its DUI allegations.
Defense attorney Lynch was instructed to prepare the proposed order documenting the ruling. He indicated that the document would be submitted promptly, bringing the contested suppression hearing toward its formal conclusion.
The consequences extended beyond an evidentiary disagreement. With the prosecution’s evidence suppressed, the state lacked the materials needed to continue pursuing the impaired-driving charges in the ordinary manner described in the proceedings.
According to the case account, the prosecution did not continue after the ruling, and the case was closed on June 15, 2026. Thomas therefore avoided a trial on the original DUI allegations.
The outcome did not establish that Thomas had consumed no alcohol or that Proctor’s subsequent observations were fabricated. The decisive issue concerned whether the prosecution had sufficiently demonstrated that the initial stop was constitutionally justified.
It also did not mean that police officers are prohibited from relying on information supplied by colleagues. The collective knowledge doctrine can support coordinated investigations when its factual and legal requirements are satisfied.
The problem was evidentiary. The state depended on the original deputy’s observations yet did not call that deputy, leaving the court to determine whether a secondhand account adequately established reasonable suspicion.
Georgia suppression hearings permit judges to consider evidence that might otherwise face restrictions at trial, including certain hearsay statements. Nevertheless, admissibility does not automatically establish that the evidence deserves sufficient weight to prove disputed facts.
That distinction became central to the outcome. Judge Long-Hayward could hear Proctor’s description of the deputy’s statements while still concluding that the prosecution had not sufficiently proven the legal justification for the stop.
The case demonstrated how a relatively narrow procedural issue could undermine an otherwise detailed prosecution. Even multiple sobriety observations could not resolve the missing foundation concerning the original reason for detaining the driver.
For prosecutors, the hearing illustrated the importance of selecting witnesses who can establish the essential sequence of events. A responding officer may competently describe an investigation without possessing personal knowledge of its constitutional starting point.
For defense attorneys, the case showed how carefully identifying the foundational issue can matter more than contesting every later piece of evidence. Lynch declined cross-examination but concentrated his argument on the missing initial witness.
For the judge, the dispute required separating investigative cooperation from the burden of proving legality. Police may share information, but the prosecution still must establish the facts necessary to justify a contested seizure.
Ultimately, a DUI case built around roadside observations and suspected impairment collapsed at an earlier legal hurdle. The officer who could describe the alleged traffic violation had not testified, and the resulting evidentiary gap proved decisive.
Nataki Thomas’s case became a reminder that criminal prosecutions depend not only on what investigators discover, but also on how lawfully that evidence is obtained and whether the state can demonstrate the legal foundation for obtaining it.
