Thе State appeals from the district court’s interlocutory ruling that evidence of blood-alcohol content (BAC) measured by DataMaster infrared testing device is inadmissible in either a DUI civil suspension or a DUI criminal proceeding. Well over one hundred cases were governed by the court’s ruling. We reverse.
While driving a motor vehicle on Route 7 in St. Albans, defendant was stopped by a state trooper for an equipment defect. According to police affidavits, during the stop, the trоoper suspected defendant was DUI and conducted field sobriety tests. Defendant eventually sub *28 mitted to a DataMaster breath test, resulting in a BAC reading of .175%. Defendant requested a second DataMaster test, which was performed shortly after the first. The second test resulted in a BAC of .183%, a reading that deviated slightly less than 5% from the first. Defendant was then charged with DUI.
Defendant moved to exclude the DataMaster test results on grounds that the Department of Health had not properly promulgated rules to trigger a presumption of validity under 23 V.S.A § 1203(d) (“analysis performed by the state shall be considered valid when performed according to a method or methods selected by the department of health”) and because the DataMaster testing device did not conform to department performance standards. The court held the department had not satisfied the statute’s rulemaking requirement. This determination was not appealed and is not before us.
The sole issue on appеal is whether the State is precluded from demonstrating the scientific reliability of the DataMaster infrared testing equipment and testing methodology, in general, and the trustworthiness of defendant’s test result in particular. The trial court ruled that even if the State could show, without using the statutory presumption, that the test results were reliable, they would nonetheless be inadmissible. The court acknowledged that its ruling directly contradicted our holding in
State v. Mills,
In
Mills,
defendant contendеd that 23 V.S.A. § 1203(a) required the Department of Health to adopt rules for chemically testing breath samples before a given test result was admissible in a DUI prosecution.
Id.
at 16-17,
Chemical analysis of the person’s breath or blood shall be considered vаlid under the provisions of this section when performed according to methods approved by the department of health.
In 1989 the legislature amended that section, requiring that infrared testing methods be adopted by rulemaking and that such tests “shall be analyzed in compliance with rules adopted by the *29 department of health.” 23 V.S.A. § 1203(d) (emphasis added). The legislature also provided an identical presumption of validity, stating: “[Infrared breath] analysis performed by the sate shall be considered valid when performed according to a method or methods selected by the department of health.” Id. The one difference — an explicit mandate for rulemaking in the amended version — is the basis for defendant’s contention that Mills is distinguishable and not contrary to the court’s ruling that DataMaster evidence is inаdmissible.
The trial court’s initial rejection of the State’s offer of the DataMaster evidence under a presumption of validity was mandated by § 1203(d) because rulemaking had not been properly conducted. The court, however, went further and inferred that § 1203(d) required suppression of the DataMaster results in any instance where rulemaking was not accomplished. This position is not borne out by analogous cases. In the absence of a specific legislative sanction, it is improper to infer consequences not provided in the statute. See, e.g.,
State v. Skilling,
Compliance with the statutory rulemaking requirement is mandatory only to the extent that the State wishes to benefit from the presumption of validity. The statute does not state or imply that departmеnt rulemaking is a prerequisite to admissibility. The trial court’s reliance on § 1203(d) as a ground for denying admission of the DataMaster results was erroneous. Without a statutory basis for excluding the DataMaster test, the rules of evidence determine whether defendant’s BAC results are admissible.
DUI test results may be proved by traditional evidentiary means, for, as we noted in
Mills,
despite the department’s duty to use
*30
rulemaking, “the judiciary has long had available to it a procedural and evidentiary framework to determine the validity of chemical analysis to еstablish [RAC].”
Mills,
Traditionally, the standard most -widely applied for admissibility of scientific evidence was the
Frye
test, which allowed admission of scientific evidence if it was generally accepted as reliable in the relevant scientific community.
Frye v. United States,
In Mills, the Court observed:
“It is not required that the results of accepted chemical testing methods be infallible to be admissible. If the test affords reasonable assistance to the triers of the fact, technical shortages in the manner or method of proof may affect its weight but do not control its admissibility.”
If scientific, technical, or other specialized knowledgе mil assist the trier of fact to understand the evidence or to determine *31 a fact in issue, a witness qualified as an expert by knowledge, skill, experience, training, or education, may testify thereto in the form of an opinion or otherwise.
V.R.E. 702 (emphasis added). Like any case in which scientific “facts” are at issue, the State should not be precluded from proving the reliability and accuracy of the DataMaster’s infrared breath analysis with expert opinion. A contest over the “science” or the specific result may be decided by the trier of fact by weighing the expert testimony.
The trial court, on the other hand, believed that any “battle of the experts” would be against the legislative intent for efficient and speedy resolutions of DUI cases. It determined that allowing scientific evidence would not only be inefficient and time-consuming, given the substantial number of DUI prosecutions and civil suspensions heard, but would also be prohibitively expensive for the litigants. We doubt the burden is as great as the court predicted, and, although judiсial economy and timeliness of disposition are important interests in the dispensation of justice, they cannot by themselves overcome the legislative mandate.
For the past two decades and during several amendments to the statutоry scheme, the legislature has seen fit to let our interpretation in
Mills
stand. See
In re Dixon,
The triаl court further reasoned that the DataMaster infrared test did not meet regulatory performance criteria. The Department of Health Regulation, Breath and Blood Alcohol Analysis 1(b), effective April 4, 1990, states:
*32 Analytical instrumentation shall be capable of analyzing replicate portions of a known alcohol sample with a precision of plus or minus 5% from their mean. The instrumentation shall be capable of determining the blood alcohol concentration of the person sampled with an accuracy of plus or minus 10%. *
(Emphasis added.) Unlike the crimper test, which captures a single exhaled breath in three segments of an indium tube for analysis, thе DataMaster infrared test collects different breaths exhaled at separate times. In its decision, the trial court noted that it had seen other cases where the DataMaster had failed to analyze replicate breaths with an аccuracy of plus or minus 5% from their mean. It therefore concluded that the department standard could not be achieved with the DataMaster and that evidence gathered by the machine must not be admitted.
. The language of the depаrtment regulation, however, defines the 5% deviation standard as a laboratory calibration requirement for the DataMaster, not, as the trial court asserted, a field performance criterion. In State v. Robitaille, we explained that the 5% deviation standard applied to the one breath crimper test, stating:
The reason for the test of the second sample is to check the reliability of the first. The integrity of the testing may be in doubt due to flaws in the testing equipment, the taking of the sample, or the sampling equipment. If two tests produce similar results, the validity of the results is relatively high according to departmental regulation. If the two results vary more than 5% of their mean, however, the integrity of the tests is sufficiently in doubt to warrant discarding the results.
In summary, the truth or falsity of an alleged scientific “fact” is not at issue in this appeal. DataMaster’s trustworthiness as an “evidentiary test” under 23 V.S.A. § 1200(3) is still an open question, but, because the same issue may be determined under V.R.E. 104(a), the court’s refusal to admit any evidence concerning the DataMaster process and results was erroneous.
Reversed and remanded.
Notes
The 1992 Breath and Blood Alcohol Analysis regulations C(I)(2) and C(I)(3), methods for breath-alcohol analysis, are essentially identical to the 1990 rеgulation 1(b) in regard to analytical accuracy requirements. They state:
C(I)(2). Analytical instrumentation shall be capable of analyzing replicate samples of breath containing a known amount of alcohol with a precision of plus or minus 5% from their mean when alcohol concentrations are reported to three significant figures.
C(I)(3). Analytical instrumentation shall be capable of determining the blood or breath alcohol concentration of the person sampled with an accuracy of plus or minus 10%.
