I have learned a great deal from many older mentors over the course of the years. My father died the day after my 17th birthday so naturally I have had many other father figures since that time. One of my closest and dearest friends, an excellent trial attorney in Pennsylvania, named E.J. Carreiro taught me to always begin with the end in mind. As a lawyer that means begin your case by looking at what needs to be proven. For a negligence case that means: duty, breach of duty, proximate cause (relationship between duty and the breach), and damages.

For New York DWI cases the government has the burden of going forward , the government has to prove their case beyond a reasonable doubt, and the government has to overcome the presumption of innocence.

Looking at the New York DWI Jury Instructions (the Judge instructs the jury with specific directions) for the per se charge (.08BAC or higher) VTL 1192 (2) states: Under our law, evidence that the defendant operated a motor vehicle, and that thereafter the defendant had .08 of one per centum or more by weight of alcohol in his or her blood permits, but does not require, the inference that, at the time of operation of the motor vehicle, the defendant had .08 of one per centum or more by weight of alcohol in his or her blood.

In deciding whether to draw that inference (a likely conclusion drawn from the facts) you may consider the results of any test given to determine the alcohol content of the defendant's blood. In this case, the device (it is a machine) used to measure blood alcohol content was a Datamaster DMT (usually). That device is generally accepted instrument (machine) for determining blood alcohol content. Thus, the People are not required to offer expert scientific testimony to establish the validity of the principles upon which the device (machine) is based.

NOW COMES THE GOOD PART : In considering the results of any test given to determine the alcohol content of defendant's blood you MUST consider:

1. the qualifications and reliability of the person who gave the test;

2. the lapse of time between the operation of the motor vehicle and the giving of the test;

3. Whether the device (machine) was in good working order at the time the test was administered;

4. Whether the test was properly given.