Alleged Drunk Driver is pulled over by police while negotiating highway construction traffic. Client claims he is forced into breakdown lane by trailer truck failing to yield at lane restriction. Police stop driver for use of breakdown lane and note slurred speech, red/glassy eyes and an odor of alcohol. Driver admits to drinking a few beers after work with colleagues. Despite recent knee injury, police require standard walking and balancing field sobriety tests. Post arrest breath test .10 BrAC. Defense challenges validity and accuracy of breath test device including maintenance and calibration records. Medical records disclose client underwent knee surgery in the days following the arrest for the knee injury. Not guilty verdict following Massachusetts OUI trial.