SDCL § 2-7-22: Forfeiture of office on conviction of legislator--Disqualification from public office.

The conviction of a member of the Legislature of any crime defined in § 22-12A-17 or 22-12A-18 involves as a consequence, in addition to the punishment prescribed therein, a forfeiture of his office and disqualifies him from ever thereafter holding any public office under this state.