A Knox woman was arrested Tuesday night in Marshall County for driving under the influence with several juveniles in her car. Marshall County Police working a DUI Task Force got a report from dispatch of a car driving erratically and speeding and a short time later arrested Nikki Gibson. Authorities say she blew a .18, more than twice the legal limit. Several juveniles were also in the vehicle. Gibson faces a felony charge for operating while intoxicated with a passenger under the age of 18. She'll be in court August 5th.