At Cowan, Kirk & Gaston, we have a combined experience of over 75 years defending DUIs in the Seattle area. Your Seattle DUI lawyers are highly trained, not only in the science of breath and blood testing, but also in the field sobriety testing techniques used by the police. We also have extensive hands-on experience with the DataMaster, the breath-testing device used in the state of Washington, in fact, we have been called upon to lecture other lawyers, in Washington and around the country, on how to deal with that machine in court.