Celebrity Celebrity Relationships Celebrity Breakups Kim Zolciak-Biermann Defends Daughter Ariana After DUI Arrest: 'She Was Being Cooperative and Honest' The RHOA alum's 20-year-old daughter was charged with three misdemeanors after being arrested in Georgia By Dory Jackson Dory Jackson Dory Jackson is a Staff Editor for PEOPLE's TV News team. Upon joining the brand in March 2021, she has had the opportunity to interview a long list of celebrities, from Kate Hudson to Pierce Brosnan to Billy Porter. She has also helped recap popular TV shows like 'The Real Housewives of Beverly Hills,' 'Sister Wives' and 'Vanderpump Rules.' The New York-based Maryland native graduated from Randolph-Macon College in May 2016 with a focus on Communication Studies and Journalism. She came to PEOPLE in March 2021 after working at a number of major news companies, including Newsweek and Us Weekly. People Editorial Guidelines Published on August 16, 2022 12:48PM EDT Kim Zolciak-Biermann is speaking out after her daughter Ariana Biermann's recent DUI arrest. The Real Housewives of Atlanta alum came to the 20-year-old's defense in an Instagram Story on Tuesday. "Ariana was involved in a minor fender bender. When police arrived on the scene, the investigating officer immediately initiated an investigation for DUI of alcohol," wrote Zolciak-Biermann, 44. "Despite Ariana's constant invocation that she was upset and anxious from the minor accident, the officer incorrectly concluded she was impaired. That was not the case." Zolciak-Biermann declared that Ariana was "not impaired by any substance, including alcohol or marijuana." Kim Zolciak-Biermann/Instagram Kim Zolciak-Biermann's Daughter Ariana, 20, Refused Breathalyzer During DUI Arrest: Police Report "Since she was being cooperative and honest, she admitted to consuming marijuana the day before, meaning over 24 hours prior to her contact with the law," she continued. "In addition, the arresting officer, as evidenced by his own police report, charged Ariana with impairment by alcohol. She wholly denies these allegations and intends to fight these charges because she is not guilty of them." She concluded, "We appreciate the general public allowing this case to be tried on its merits, and not rhetoric or incorrect conclusions." Kim Zolciak-Biermann/Instagram Kim Zolciak-Biermann/Instagram This past weekend, Ariana was arrested after being involved in a collision with another vehicle while driving a black Mercedes G-Wagon. Upon being taken to Forsyth County Jail, she was charged with three misdemeanors: driving under the influence of alcohol, improper/erratic lane change and underage possession/purchase of alcohol. Ariana was later released on a $5,120 bond. According to a police report obtained by PEOPLE, an officer claimed to have smelled alcohol on Ariana's breath. She has denied she was drinking but did admit to smoking a THC vape pen the night before — an item that an office retrieved from her bag. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. Attorney Justin Spizman, of Hawkins Spizman law firm, previously told PEOPLE Ariana "denies these allegations and intends to fight these charges because she is not guilty of them." Ariana's on-and-off boyfriend Hudson McLeroy was also arrested at the time for allegedly driving under the influence, furnishing alcohol to a minor and violating the conditions of his limited driving permit. Zolciak-Biermann is also mother to 25-year-old daughter Brielle Biermann. The former reality star additionally shares Kroy Jagger, 10½, Kash Kade, 9½, and 8½-year-old twins Kaia Rose and Kane Ren with husband Kroy Biermann. The couple has been married since 2011.