La. Const. art. V, § 23

(A) Retirement System. Within two years after the effective date of this constitution, the legislature shall provide for a retirement system for judges which shall apply to a judge taking office after the effective date of the law enacting the system and in which a judge in office at that time may elect to become a member, with credit for all prior years of judicial service and without contribution therefor. The retirement benefits and judicial service rights of a judge in office or retired on the effective date of this constitution shall not be diminished, nor shall the benefits to which a surviving spouse is entitled be reduced. (B) Mandatory Retirement. Except as otherwise provided in this Section, a judge shall not remain in office beyond his seventieth birthday. A judge who attains seventy years of age while serving a term of office shall be allowed to complete that term of office. Acts 2003, No. 1296, §1, approved Oct. 4, 2003, eff. Jan 1, 2004.