Oberhauser Law specializes in criminal defense and specifically OUI defense. Attorney Oberhauser is certified in field sobriety testing, breathalyzer testing, and is 1 of only 24 defense attorneys in the nation to be distinguished as an ACS-CHAL Forensic Lawyer-Scientist by the American Chemical Society and the ONLY attorney in Massachusetts! Oberhauser Law represents clients in Middlesex County, Essex County, Suffolk County, and Worcester County.