A New York Criminal Lawyer said on 11 March 2007 at 4:58 A.M., a police officer who was trained to estimate the speed of a moving vehicle observed defendant traveling at about 90 miles per hour on the Long Island Expressway. The officer confirmed that estimate by a laser device and by his speedometer during the subsequent pursuit. The officer stopped defendant and noted that defendant exhibited several indicia of intoxication. Defendant admitted having had “one drink.” The officer administered a series of field sobriety tests, all of which defendant failed. The officer arrested defendant at 5:23 A.M. and transported defendant to the Nassau County Police Department’s Central Testing Unit, where defendant again failed a series of sobriety tests and consented to a chemical test of the alcohol content of his blood. The test, conducted at 7:24 A.M. by an Intoxilyzer 5000 EN breath test instrument, produced a reading of.11 per centum by weight.
Defendant was convicted of driving while intoxicated (DWI) and speeding under the Vehicle and Traffic Law. Defendant appeals the decision with the herein court.
Defendant sought to introduce expert testimony as to the range of individual variation within the general population from the 2, 100:1 “conversion” or “partition” ratio used in the Intoxilyzer 5000 EN to derive the concentration of alcohol in a person’s blood from the quantity of alcohol vapor detected in a breath sample. A New York DWI Lawyer said the defendant did not challenge the instrument’s reliability, but sought to lay the foundation for a jury argument that defendant’s individual ratio might differ so significantly from the mean as to diminish the evidentiary weight to be accorded the test results. The District Court precluded the evidence, apparently on relevancy grounds.