Massachusetts Supreme Judicial Court May 24, 2011, SJC-10758 (Commonwealth v. Zeininger)

Cordy, J.

The principal issue in this case is whether an annual certification, and accompanying diagnostic records, attesting to the proper functioning of the breathalyzer machine used to test a defendant’s blood alcohol content were admissible in a criminal prosecution for operating a motor vehicle while under the influence of intoxicating liquor, G. L. c.