Utah constitution
Article VI: legislative department
Section 10

(1) Each house shall be the judge of the election and qualifications of its members, and may punish them for disorderly conduct, and with the concurrence of two-thirds of all the members elected, expel a member for cause.
(2) (a) There is established a legislative ethics commission with authority to conduct an independent review of each complaint alleging unethical legislative behavior, to determine whether the complaint merits further consideration by the house of the member against whom the complaint is made.
(b) (i) The commission shall consist of five members.
(ii) A commission member may not be a sitting legislator or a person who is registered as a lobbyist.
(c) The Legislature may by rule provide for:
(i) procedures and requirements for filing a complaint alleging unethical legislative behavior;
(ii) the qualifications, appointment, and terms of commission members; and
(iii) commission duties, powers, operations, and procedures.