The Supreme Court shall be composed of five judges, one of whom shall be styled Chief Justice and elected as such, any three of whom shall in every case be necessary to a decision. Provided if it should hereafter become necessary to increase the number of the judges of the Supreme Court, the Legislature may provide for two additional judges and may also provide for the court sitting in divisions under such regulations as may be prescribed by law; provided further, that should the court sit in divisions, in all cases where the construction of the Constitution is involved, the cause shall be heard by the court in banc, and in all cases when a judge of a division dissents from the opinion therein, at the request of the Chief Justice, or such dissenting justice, the cause shall be transferred to the court in banc for its decision.