Visit http://MccranieLawFirm.com for more videos & answers to your questions. DUI, Speeding, Marijuana & Criminal Defense lawyer George McCranie IV with offices in Valdosta & Douglas, GA discusses what the HGN test is, the proper instructions & administration of the HGN test. And he also tells you how to simulate the Nystagmus the officer is looking for in a DUI stop so that you can actually see Nystagmus. Georgia DUI & Criminal Defense lawyer George McCranie IV is a best-selling Author and was recently featured as an expert legal analyst on the TV show "America's Premier Experts". This TV show 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. For more information to help answer your DUI, Marijuana, Speeding or Criminal Defense questions go to http://MccranieLawFirm.com