Mississippi constitution
Article 6
Section 145-b

The Supreme Court shall consist of nine judges, that is to say, of three judges in addition to the six provided for by Section 145-A of this Constitution, any five of whom when convened shall constitute 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-A of this Constitution or any amendment thereto. Their terms of office shall be as provided by Section 149 of this Constitution or any amendment thereto.