Rule 130, Section 24- b) An attorney or personally believed by the client to be licensed to engage in the practice of law cannot, without consent of the client, be examined as to any communication made by the client to him or her, or his or her advice given thereon in the course of, or with view to, professional employment, nor can attorney's secretary, stenographer, clerk, or other persons assisting the attorney be examined without consent of the client and his or her employer, concerning any fact the knowledge of which has been acquired in such except in the following cases: