Chapter 20, title 1, Idaho Code, shall operate prospectively in its application as to all persons who are receiving retirement benefits thereunder, provided that the Supreme Court may by order apply all of the provisions of this chapter to service under section 1-611, Idaho Code.
In no case shall any justice or judge, serving at the time this act becomes effective, receive and have paid to him, at the time of his retirement, retirement compensation in any lesser amount than he would have become entitled to receive and have paid to him under the act as it existed prior to this amendment.