Visit http://MccranieLawFirm.com for more videos & answers to your questions. DUI & Criminal Defense Lawyer George McCranie IV with offices in Valdosta & Douglas, Georgia discusses the Preliminary Breath Test (PBT) or Alco-sensor and the fact that it is NOT the Official State of Georgia's breath Test. Also discussed are the limitations of the PBT / Alco-senser. http://www.MccranieLawFirm.com DUI & Criminal Defense Lawyer George McCranie IV with offices in Valdosta & Douglas, Georgia discusses Georgia officer's National Highway Traffic Safety Administration (NHTSA) training concerning their observation of your driving & potential indicators of a DUI or drinking driver. Best-selling Author and Georgia DUI and Criminal Defense Attorney George McCranie IV, was recently featured as an expert guest on the TV show "America's PremierExperts". This TV show has aired nationally on NBC, ABC, FOX NEWS & CBS affiliates. In April, 2014 George McCranie IV was presented with an EXPY award for his outstanding performance educating the public on legal topics in the broadcast media. George McCranie IV is also a two time #1 Best Selling Author for his books, Protect & Defend and The Authority on DUI Defense in Georgia. Valdosta State College Lowndes County, Georgia Valdosta, Lakepark, Remerton, Georgia Coffee County, Georgia Douglas, Broxton, Nichols, Georgia.