People v. Campbell, 69 N.Y.2d 482 (1987)
Blood alcohol test results obtained from a DuPont Automatic Clinical Analyzer (ACA) are not admissible per se; the prosecution must lay a proper foundation establishing the accuracy and reliability of the machine for blood alcohol content testing, specifically demonstrating its accuracy within the standard of 0.01 grams per 100 milliliters.
Summary
This case clarifies the evidentiary foundation required for admitting blood alcohol test results obtained from a DuPont Automatic Clinical Analyzer (ACA) in DWI cases. The Court of Appeals held that such results are not admissible per se simply because they were generated in a hospital laboratory. The prosecution must establish the ACA’s accuracy and reliability for determining blood alcohol content within the legally required precision. The court emphasized that a State Health Department permit for the hospital does not automatically guarantee the machine’s accuracy for forensic blood alcohol testing.
Facts
Defendants were charged with driving while under the influence of alcohol (DWI) under Vehicle and Traffic Law § 1192(2). Blood samples were taken from the defendants and analyzed at Jamestown General Hospital, a state-permitted facility, using a DuPont Automatic Clinical Analyzer (ACA). The tests were performed by certified hospital technologists. The ACA is a spectrophotometer using reagent packs to determine blood alcohol content. The technologists were trained to operate the machine but lacked advanced degrees in chemistry.
Procedural History
Defendants were convicted in various Justice Courts of Chautauqua County. County Court reversed these convictions and dismissed the informations, holding that the blood alcohol test results were inadmissible without a proper foundation. The People appealed to the Court of Appeals.
Issue(s)
Whether blood alcohol test results from a DuPont Automatic Clinical Analyzer are admissible in evidence per se, or whether the People must lay a foundation establishing the accuracy and reliability of the machine under the standards articulated in People v. Mertz and People v. Freeland.
Holding
No, the blood alcohol test results are not admissible per se because the People failed to establish that the DuPont ACA machine used was sufficiently accurate and reliable for forensic blood alcohol testing to meet the state’s accuracy standard of 0.01 grams per 100 milliliters.
Court’s Reasoning
The Court of Appeals distinguished between the general reliability of hospital tests for medical purposes and the specific accuracy required for forensic blood alcohol testing in criminal cases. The court referenced People v. Mertz, which requires establishing the accuracy of a breathalyzer before its results are admissible. The Court stated that the State regulations require blood alcohol readings to be accurate within 0.01 grams per 100 milliliters. The court noted that the People did not present any scientific evidence establishing the reliability of the DuPont ACA for determining blood alcohol content within that standard, and that, in fact, evidence suggested the ACA’s manufacturer-set range exceeded this standard. The Court rejected the argument that the technologists’ certifications or the hospital’s permit were sufficient to establish the machine’s accuracy. The Court emphasized that the technologist could not be considered an expert able to attest to the machine’s specific accuracy: “the technologist… does not qualify as an expert on the internal workings of the machine and his or her testimony does not satisfy the distinct foundational requirement that the machine test blood alcohol content accurately within required specifications”. Citing People v. Freeland, the court emphasized the need to show that the machine is capable of accurately discerning the distinction between legal and illegal blood alcohol content.