This paper describes the evaluation of the performance of 2 evidential breath testing instruments, the Dragar Alcotest 7110 MKIII(D) and a Camic Datamaster (C). The instruments were tested on a) a group of drivers suspected of drunken driving in conjunction with normal blood sampling procedures and b) a group of volunteers who were given alcoholic beverages under controlled conditions. The performance of both instruments was considered to be very similar and correlated well with the blood alcohol results.
Abstract