Georgia Motion to Exclude Breath and Blood Results Lawyer
Most people charged with DUI in Georgia assume the chemical test result is the end of the story. It rarely is. A Georgia motion to exclude breath and blood results is a formal legal challenge that, when successful, strips the prosecution of its most persuasive evidence before trial ever begins. This is fundamentally different from challenging a DUI charge on the merits at trial. An exclusion motion targets the admissibility of the evidence itself, not just its weight or credibility. When a breath or blood result is suppressed, prosecutors are often left without the scientific basis for their case, and the entire trajectory of the charge changes.
Why Exclusion Motions Are Not the Same as Fighting the DUI
A common misconception is that challenging a breath or blood test means arguing with the number. Defendants sometimes believe the fight is over whether a .12 or a .15 actually impaired their driving. That is a different argument, made at trial by a different method. A motion to exclude attacks something earlier and more fundamental: whether the evidence was lawfully obtained, properly handled, and technically reliable enough to be placed before a jury at all.
Georgia courts have developed a significant body of case law around when chemical test results must be excluded. The legal standards come from multiple directions simultaneously. There are Fourth Amendment requirements governing the stop and arrest that preceded the test. There are implied consent requirements under Georgia law that govern how officers must advise a suspect before requesting a sample. There are chain of custody and laboratory protocol requirements for blood draws. And there are strict calibration and maintenance requirements for breath testing instruments. A failure at any point along that chain can support suppression.
This is why the distinction matters so much at the outset of a case. If you are approaching your defense as a straight credibility contest, you may never surface the procedural and technical issues that would have ended the prosecution’s case entirely. The analysis has to begin with admissibility, not persuasion.
How Georgia’s Implied Consent Law Affects the Motion
Georgia’s implied consent statute requires law enforcement officers to read a specific advisory to a person under arrest for DUI before requesting a chemical test. The advisory must be read at the time of arrest, must be substantially complete, and must be read in a manner the suspect can understand. Courts have found suppression warranted when the officer read the wrong version of the notice, read it too late, read it in a way that was rushed or inaudible, or failed to give the suspect a genuine opportunity to respond.
The Georgia Supreme Court’s decision in Elliott v. State significantly reshaped how implied consent works in practice. Following that ruling, the state cannot use implied consent refusals as direct evidence of guilt. But the obligation to properly advise the suspect before testing remains, and violations of that obligation still carry consequences for admissibility of the result itself. The legal landscape here is more fluid than it was five years ago, which makes current case law knowledge essential.
For blood draws, the analysis branches further. If law enforcement obtained blood without a warrant and without a valid consent, the Fourth Amendment analysis under Missouri v. McNeely and its Georgia progeny becomes central. A non-consensual, warrantless blood draw requires an established exigent circumstance. Officers cannot simply invoke the natural dissipation of alcohol as an automatic exigency. Courts have increasingly scrutinized those claims, and suppression has followed where officers had time to obtain a warrant and chose not to.
Technical Grounds for Challenging the Breath Test Instrument
The Intoxilyzer 9000 is the current breath testing instrument approved for use in Georgia DUI prosecutions. Georgia’s Division of Forensic Sciences is responsible for maintaining an approved product list and establishing protocols for instrument use, calibration, and operator certification. Every one of those protocols is a potential suppression ground if it was not followed.
Operators must hold a current permit issued after completing an approved training program. The instrument must have been inspected and certified within required intervals. Inspection records are public documents, and reviewing them is a standard part of defense preparation. If the machine was serviced outside the required window, if the operator’s permit had lapsed, or if there was a documented malfunction in the instrument’s history that was not properly addressed, those facts support a motion to exclude the result.
Georgia also requires an observation period of at least twenty minutes before administering the breath test, during which the subject must not eat, drink, smoke, vomit, or burp. The physiological rationale is that mouth alcohol from any of those sources can artificially inflate the reading. If an officer failed to maintain proper observation, that is grounds for suppression. Some of the most effective suppression motions are built not on grand constitutional arguments but on these seemingly mundane procedural failures that went unnoticed in the original arrest record.
What Happens to the Case When Evidence Is Excluded
Suppression of a breath or blood result does not automatically result in a dismissal, but it fundamentally changes the prosecution’s position. Georgia DUI law allows conviction either under the per se theory, meaning a blood alcohol concentration of .08 or above, or under the less safe theory, meaning impairment regardless of a specific BAC reading. When the chemical test is excluded, the per se avenue is gone. The state is left to prove the less safe theory using only the officer’s testimony about driving behavior, field sobriety test performance, and observed signs of impairment.
That is a substantially more difficult case for the prosecution to make. Field sobriety tests are contested on their own terms, and without a number anchoring the government’s argument, juries are less predictable. Many cases resolve at a different level once the chemical evidence is off the table, whether through a reduced charge, a diversion program, or outright dismissal. The Spizman Firm has secured not guilty verdicts in cases involving breath test refusals and has achieved dismissals of felony charges through pretrial investigation and motion practice. The suppression phase is where cases are often won before they reach the courtroom.
Questions About Motions to Exclude in Georgia DUI Cases
When must a motion to suppress be filed in a Georgia DUI case?
In Georgia, motions to suppress evidence must generally be filed before trial. Under O.C.G.A. 17-5-30, the motion must be filed within the time allowed for filing pre-trial motions, which is typically tied to the arraignment and scheduling order set by the court. Missing this deadline can result in waiver of the suppression argument. Early engagement with counsel matters because gathering the instrument records, training certificates, and arrest documentation necessary to build the motion takes time.
Can a blood test be thrown out even if the draw was done at a hospital?
Yes. Hospital blood draws are not automatically insulated from suppression challenges. The relevant questions are whether consent was valid and informed, whether law enforcement directed the draw or merely obtained records, and whether proper chain of custody was maintained from the hospital to the testing laboratory. Hospital-drawn samples sometimes have chain of custody gaps that forensic laboratory samples do not, and defense counsel should request complete documentation of every person who handled the sample.
Does suppression apply if I refused the test?
If you refused the test and no sample was obtained, there is no test result to suppress. The motion to exclude is relevant when a sample was actually taken and a result was generated. However, if you refused and officers obtained a warrantless blood draw anyway over your objection, that sample may be subject to suppression on Fourth Amendment grounds, which is a separate and significant legal question.
What is the standard the court applies in deciding a suppression motion?
The defendant bears the initial burden of making a prima facie case that the evidence was obtained unlawfully or in violation of applicable testing protocols. Once that showing is made, the burden shifts to the state to justify the search or demonstrate substantial compliance with required procedures. The court decides the motion at a hearing where officers and potentially expert witnesses may testify. The judge, not a jury, decides suppression questions.
How does a suppression motion affect a driver’s license suspension?
The criminal suppression motion and the administrative license suspension are parallel but separate proceedings. A successful suppression motion in the criminal case does not automatically undo an administrative suspension through the Georgia Department of Driver Services. The ALS process has its own timeline, typically requiring an appeal request within thirty days of arrest, and must be addressed independently and promptly.
Can the state re-test a blood sample if the first result is suppressed?
If the original blood draw was suppressed due to a constitutional violation, re-testing the same sample would generally be barred as well, because the sample itself is the fruit of the unlawful seizure. If the suppression was based on a procedural defect in the testing process rather than the collection, the analysis is more nuanced. In practice, re-testing scenarios are uncommon because the suppressed sample itself is typically unavailable to the state after exclusion.
Cases Handled Throughout the Atlanta Metro and North Georgia
The Spizman Firm represents clients facing DUI and related charges across a broad range of jurisdictions in Georgia. In the Atlanta metro area, this includes cases arising in Fulton County, DeKalb County, Gwinnett County, and Cobb County, with proceedings in courts ranging from the Fulton County Superior Court downtown to the State Court of Gwinnett County in Lawrenceville. The firm handles matters in Sandy Springs, Dunwoody, Alpharetta, Marietta, Decatur, and surrounding communities. Cases originating from incidents on I-285, I-85, I-75, and Georgia 400 frequently involve Georgia State Patrol troopers and are prosecuted in multiple jurisdictions depending on where the stop occurred. North of Atlanta, the firm has handled cases in Cherokee, Forsyth, and Hall Counties as well. Wherever a Georgia court has jurisdiction over a DUI charge, the suppression analysis is the same, and the firm’s approach travels with the client.
Talk to The Spizman Firm About Your Chemical Test Challenge
A consultation with The Spizman Firm begins with a frank assessment of the arrest, the testing process, and the documentation that exists to support or undermine the government’s evidence. You will hear directly what grounds may exist for a motion, what the realistic outcomes are if that motion succeeds or fails, and what the full range of your options looks like. There is no pressure and no overselling. Justin Spizman and the firm’s trial lawyers have a documented record of not guilty verdicts and dismissed charges across a full range of Georgia DUI cases, and that experience shapes every motion and every strategy. If the chemistry of your arrest has legal problems the prosecution has not considered, those problems deserve a hard look before your case proceeds another step. Reach out to The Spizman Firm to schedule your free case review with a Georgia motion to exclude breath and blood results attorney who will give you an accurate picture of where things stand.
