Kim Zolciak demands drug test for ex-husband amid divorce and safety concerns.

Kim Zolciak has reportedly filed a petition requesting that her estranged husband, Kroy Biermann, submit a drug test amid their ongoing divorce and custody battle. Zolciak has allegedly witnessed Biermann smoking marijuana and has "concerns" about the "safety" of their four minor children. The former couple, who were married for 11 years and share six children, are in the midst of a custody battle. Biermann filed a petition seeking sole legal and physical custody of his biological kids, while Zolciak asked for the same but was willing to allow her ex visitation rights. The divorce has yet to be finalized and litigation is ongoing.