S.D. Codified Laws § 36-1C-3
Upon receipt of a properly submitted complaint within the agency's jurisdiction, the administrator shall serve a copy of the complaint by mail or electronic mail upon the applicant or licensee complained against.
The applicant or licensee complained against shall send a response to the complaint to the administrator of the agency within twenty business days after service of the complaint on the applicant or licensee. Upon receipt of the response of the applicant or licensee, or upon expiration of the time for the applicant or licensee complained against to respond, the administrator shall assign an investigative committee to determine if the complaint has probable cause and constitutes grounds for disciplinary action or lacks probable cause and should be dismissed.
The twenty business days may be extended by the administrator for good cause.
Failure to respond to the complaint is grounds for disciplinary action.
SDCL 36-1C-3