Withdrawn plea or statement not admissible. (1) A plea of guilty or no contest which is not accepted or has been withdrawn shall not be received against the defendant in any criminal proceeding

(2) No statement or admission made by a defendant or the attorney of the defendant during any proceeding relating to a plea of guilty or no contest which is not accepted or has been withdrawn shall be received against the defendant in any criminal proceeding. [1973 c.836 §175]