A traffic stop in Pottawattamie County Wednesday evening, resulted in the arrest of a Cass County man. The Pott. County Sheriff’s Office says a Deputy conducted a traffic stop on a car at around 6:15-p.m., and subsequently arrested 57-year old Anthony William Nichols, of Atlantic, for Possession of a Controlled Substance, Unlawful possession of a prescription meds, and OWI/1st offense. Nichols was found to be in possession of a clear baggie with a green leafy substance weighing 4.3-grams, two Gabapentin, two Methocarbamol, five Cetrizine Hydrochoride, and three Zolpidem Tarrate pills.