§ 30.039  POWER OF COUNCIL TO JUDGE MEMBERS AND GOVERN PROCEEDINGS; BRIBERY.
   (A)   The council shall be the judge of the election and qualification of its own members.  It shall determine its own rules of procedure, punish its members for disorderly conduct, and, with the concurrence of two-thirds of the aldermen elected thereto, may expel a member.
   (B)   Any alderman who shall have been convicted of bribery shall thereby vacate his or her office.
(SDCL § 9-8-5)