WTF is the “Horizontal Gaze Nystagmus”?
It’s not a distant planet. It’s not a Kama Sutra move. It’s a DUI field sobriety test. And it’s coming to hipster parties near you. The Horizontal Gaze Nystagmus is one of many field sobriety tests given by law enforcement to determine whether you are under the influence of alcohol. “Nystagmus” means a jerking of…