SPENCER v. THE STATE
S16G1751
Supreme Court of Georgia
October 2, 2017
302 Ga. 133
BOGGS, Justice.
FINAL COPY
At trial, the officer was questioned by the solicitor-general regarding the HGN test:
Q: Just based on your training and experience, have you noticed a correlation between four out of six clues on the HGN test that you perform in the field and a blood alcohol or breath alcohol content that would be in a person‘s system?
A: Based on my training and my experience, four out of six clues generally indicates a blood alcohol level equal to or greater than a .08.
Spencer objected to this testimony and, after a lengthy colloquy, the trial court overruled the objection. The solicitor-general questioned the officer again:1
Q: Is therе a correlation between what you saw on the HGN test and, in general, a person‘s alcohol content level on their system?
A: Based off my training and my experience, generally there is.
Q: And what is that correlation? A: Generally, the four out of six clues indicates an alcohol concеntration equal to or greater than a .08.
A jury found Spencer guilty, the trial court denied her motion for new trial, and she appealed, contending inter alia that the trial court erred in allowing this testimony. The Court of Appeals affirmed her conviction, holding:
[I]t is true that an arresting officer‘s testimony identifying a specific numeric blood alcohol content based solely on a defendant‘s HGN results should be excluded. But the officer here did not give such testimony. Rather, he testified that in performing the test he looks for up to six clues in a subject‘s eyes, that observing four or more clues indicates impairment due to alcohol, and that four out of six clues generally indicates a blood alcohol level equal to or greater than .08.
(Citation and punctuation omitted.) Spencer I, 337 Ga. App. at 360-361 (1). The court held that, because the officer did not identify a specific blood alcohol level for Spencer, but merely testified that a finding of four out of six clues generally exceeds the impairing level of .08, the trial court did not err in allowing the testimony. Id. at 361 (1). We granted certiorari to consider whether the Court of Appeals erred in sо holding.
Our decision in Harper, supra, guides a trial court‘s determination of whether a scientific principle or technique is competent evidence in a criminal case:
[I]t is proper for the trial judge to decide whether the procedure or technique in question has reached а scientific stage of verifiable certainty, or in the words of Professor Irving Younger, whether the procedure “rests upon the laws of nature.” The trial court may make this determination from evidence presented to it at trial by the parties; in this regard expert testimony may be of value. Or the trial court may base its determination on exhibits, treatises or the rationale of cases in other jurisdictions. The significant point is that the trial court makes this determination based on the evidence available to him rather than by simply calculating thе consensus in the scientific community.
(Citations and footnote omitted.) 249 Ga. at 525-526 (1). And “[o]nce a procedure has been recognized in a substantial number of courts, a trial judge may judicially notice, without receiving evidence, that the procedure has been established with verifiable certainty, or that it rests upon the laws of nature.” Id. at 526 (1).2
It is generally accepted that the HGN test “has reached a state of verifiable
In Bravo v. State, 304 Ga. App. 243 (696 SE2d 79) (2010), our Court of Appeals addressed this distinction, noting that its earlier decision in Webb v. State, 277 Ga. App. 355 (626 SE2d 545) (2006), had correctly framed the question:
[W]e do not wish to imply that a trial court must always admit numerical еvidence of a defendant‘s blood alcohol content adduced by an HGN test. The HGN test is a procedure that has reached a state of verifiable certainty in the scientific community and is admissible as a basis upon which an officer can determine that a driver was impaired by alcohol. It may be an open question, however, whether the HGN test has reached a state of verifiable
certainty in the scientific community as a basis for determining the numerical level of a driver‘s blood alcohol level.
(Citation and punctuation omitted; emphasis in original.) Bravo, supra, 304 Ga. App. at 247 (1). After noting that numerous jurisdictions have concluded that HGN tests are “not admissible to quantify a specific BAC,” id. at 247 n. 13, the Court of Appeals concluded that the trial court erred in admitting a police officer‘s testimony that he “estimated that Bravo‘s BAC was 0.25 grams based on a mathematical сalculation,” id. at 245, because the evidence “[fell] short of establishing that the method at issue has reached a scientific stage of verifiable certainty.” Id. at 249 (1).
Additionally, Bravo cites the Court of Appeals’ decision in Kirkland v. State, 253 Ga. App. 414 (559 SE2d 161) (2002), for the proposition that “field sobriety tests, including the HGN, are admissible to show that a detainee‘s BAC exceеds a particular impairing level.” (Citation omitted.) Bravo, supra, 304 Ga. App. at 248 (1). Spencer I likewise relies upon this statement. 337 Ga. App. at 361 (1). Kirkland, however, was convicted under
Here, the Court of Appeals erroneously relied upon Kirkland and Parker, supra, without addressing its holding in Bravo that the use of an HGN test to identify a specific numeric BAC has not “been reсognized in court as reaching the requisite scientific stage of verifiable certainty,” id. at 248 (1), that “the State failed to establish the scientific validity and reliability of the procedure at issue,”
We see no valid distinction to be made between testimony that a driver‘s blood alcohol content is “estimated” at 0.25 grams, as in Bravo, and the testimony presented here that the results of Spencer‘s HGN test generally indicate a blood аlcohol content “equal to or greater than .08.”3 In either case,
Here, the State failed to meet that standard, presenting less supporting evidence than that found insufficient in Bravo. On cross-examination, the officer testified that his knowledge of the HGN test was based on his participation in police training totalling apрroximately two weeks, and that he had no medical,
We conclude that the evidence presеnted by the State in this case was insufficient to establish the scientific validity or reliability of any correlation between a particular number of clues on an HGN test and a numeric blood alcohol content, whether a specific percentage or “equal to or greater than” a specific percentage. The trial court therefore abused its discretion in admitting this evidence. In light of the repeated questioning regarding the offending
Judgment reversed in part. All the Justices concur.
Decided October 2, 2017.
Certiorari to the Court of Appeals of Georgia — 337 Ga. App. 360.
Thomas, Webb & Willis, Thomas J. Thomas, for appellant.
John A. Pipkin III, Solicitor-General, Meredith C. Florio, William B. Kennedy III, Assistant Solicitors-General, for appellee.
Notes
Although Officer McConaha did nоt specifically state an opinion that Mr. Rose‘s BAC would have registered at or above .10%, his testimony created a remarkable inference that such was the case, and we find that the admission of such testimony was an abuse of discretion. . . . [While] the use of “linguistic
