Missouri constitution
Article V: judicial department
Section 27

24. Judges, other than municipal judges, not selected under the provisions of sections
25(a)–(g) of this article who on the effective day of this article or within six
months thereafter, are seventy years of age or older, may petition the commission
on retirement, removal and discipline to continue to serve until age seventy-six if he
has not completed a total of twelve years of service as a judge. Judges, other than
municipal judges, not selected under the provisions of sections 25(a)–(g) of this article
who are in office on the effective date of this article, may, within six months before
attaining the age of seventy years, petition the commission on retirement, removal, and
discipline to be allowed to serve after he has attained that age until age seventy-six or
has completed a total of twelve years of service as a judge, whichever shall first occur.
If the commission finds the petitioner to be able to perform his duties and approves
such service, the petitioner may continue to serve as such a judge until age seventy-six
if he has not completed a total of twelve years of service as a judge at such age. No
such judge shall be permitted to serve as such a judge beyond the age of seventy-six
years regardless of whether or not he has completed a total of twelve years except for
the purpose of completing the term to which he was elected or appointed.