720 A.2d 886 | Conn. Super. Ct. | 1998
To conduct the HGN test, a police officer moves his finger or a pencil laterally from a midline point twelve to fifteen inches directly in front of the subject's eyes to an endpoint that represents the limit of one's sideways gaze. The police officer will normally look for three clues: (1) whether the eyes follow the target with smooth pursuit; (2) the extent to which the eyes exhibit any jerkiness, which is known as nystagmus, at the point of maximum sideways deviation; and (3) whether the eyes exhibit any nystagmus before a sideways movement of forty-five degrees. Lack of smooth pursuit, readily apparent nystagmus at maximum deviation, and early onset of nystagmus are indications that the subject has failed the test. The officer will look for each of these three signs in each eye, for a total of six clues. The presence of four or more clues constitutes a failure on the test. See State v. Merritt,
In State v. Merritt, supra,
The Merritt court acknowledged that in 1993 the United States Supreme Court, in Daubert v. Merrell Dow Pharmaceuticals, Inc.,
In State v. Porter,
The Porter court added that, in the event a scientific principle has not gained general acceptance, a proponent may still establish its reliability or validity by other means. Id., 84-85. Among the many factors that a proponent may rely on are: whether the methodology has been tested and subjected to peer review, the known or potential rate of error, the extent to which the scientific technique relies on subjective interpretations and judgments by the testifying expert, whether the testifying expert can present the methodology in a manner that the fact finder can reasonably draw its own conclusions therefrom, and whether the proffered expert testimony was developed solely for in-court use. Id., 85-86. In addition, the prestige and background of the testifying expert witness can play a role in determining whether a novel technique employed by that individual is likely to have scientific merit. Id., 86.
As far as can be determined, no Connecticut court has assessed the validity of HGN evidence under the Porter standards. This court will now proceed to do so.
Richman testified that the HGN test is generally accepted in the optometric community as a reliable indicator of alcohol or other impairment. As Richman observed, optometrists have examined for the presence of nystagmus for over fifty years. The optometric community, according to Richman, and, in fact, the broader medical community, generally accepts the principle that alcohol impairs the ability to hold the eyes steady. The HGN test is an application of this principle. See State v. Ruthardt,
Based on these considerations, a majority of courts has found that the HGN test is generally accepted in the relevant scientific community as a reliable indicator of alcohol impairment. State v. Ruthardt, supra, 680 A.2d 357-58; see also State v. O'Key, supra,
The HGN test does rely on some subjectivity in that the officer must correctly move his finger from side to side and correctly assess the response of the suspect's eyes. On the other hand, suspects cannot voluntarily control nystagmus and tolerance to alcohol does not affect the test. State v. O'Key, supra,
The HGN test was not developed for the purpose of any specific court case but rather to assist police officers in making accurate drunk driving arrests and thereby enhance public safety. See State v. Ruthardt, supra,
Taking all these factors into consideration, the court finds that the HGN test evidence satisfies the Porter standards and is therefore admissible. Any remaining objections concerning the validity of the test go to its weight, not its admissibility.4 *468