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 Not releasing him into the custody of his parents with electronic monitoring of some kind, that surprises me for this young of a kid,  she said.

Richards said her money is on prosecutors attempting to have KJ tried as an adult.

KJ was arrested on Aug. 17 after a female classmate claimed he sexually assaulted her in a co-ed sauna at the Life Time fitness center on April 23.

8 KJ, pictured above with Zolciak, was arrested on Aug. 21 and booked at Atlanta's Metro Regional Youth Detention Center, where he remains. kimzolciakbiermann/Instagram

8 KJ, shown above, voluntarily took a polygraph test in an effort to prove his innocence, his attorney said. kimzolciakbiermann/Instagram

He's accused of forcing the classmate to engage in numerous sexual acts without her consent, but his attorney, Jason Sheffield, told Page Six his client is  100% innocent  and claimed to have evidence to prove it.

Zolciak, 48, who shares four children with former NFL player Kroy Biermann, 40, also passionately defended her son.

 The allegations being made against my son are nothing short of reckless and deeply troubling,  the  Real Housewives of Atlanta  alum - who also has two children from previous relationships - said via her rep on Aug. 21.

 He categorically denies ever being involved with this woman or engaging in the conduct she has alleged,  she added.

8 Zolciak was spotted at her other son Kash's high school football game on Aug. 30, days after KJ was arrested. Filmsbyjosh / BACKGRID

8 Zolciak's estranged husband, Kroy Biermann, shown above at Kash's football game on Aug. 30, has not publicly commented on KJ's legal matter. Filmsbyjosh / BACKGRID

KJ's legal team has since pleaded for his release from Atlanta's Metro Regional Youth Detention Center, where he is currently being held, citing his football and academic accomplishments, as well as his strong ties to the community and his family.

Sheffield also said KJ voluntarily took a polygraph test, with results showing  no deception when answering the two relevant questions concerning the alleged conduct. 

KJ is due in court on Sept. 8.

If you or someone you know is affected by any of the issues raised in this story, call the Sexual Assault Hotline at 1-800-330-0226.