Mississippi constitution
Article 6
Section 145-a

The Supreme Court shall consist of six judges, that is to say, of three judges in addition to the three provided for by Section 145 of this Constitution, any four of whom when convened shall form a quorum. The additional judges herein provided for shall be selected one for and from each of the Supreme Court districts in the manner provided by Section 145 of this Constitution, or any amendments thereto. Their terms of office shall be as provided by Section 149 of this Constitution, or any amendment thereto.