Massachusetts state law is very clear: Drunk driving is a crime. In order to deter drunk driving, the state will not only engage in enforcement in situations where an individual is clearly impaired while driving, but will also occasionally engage in broader enforcement efforts, including roadblocks.
Getting pulled over by the police was a surprise, but testing positive for having an over-the-limit blood alcohol level was even more of a surprise. You knew that you were lucid, clear and completely coherent while driving home that night, but your breathalyzer test and blood alcohol content test say something different.
Like law enforcement agencies elsewhere in the country, New Hampshire police departments use portable breath testing machines to validate arrests when officers suspect a driver of being under the influence. What you might not know is that the results of those breath tests might not be admissible in court.