§ 481. Aiding, assisting or abetting the solicitation of persons or the procurement of a retainer for or on behalf of an attorney. It shall be unlawful for any person in the employ of or in any capacity attached to any hospital, sanitarium, police department, prison or court, or for a person authorized to furnish bail bonds, to communicate directly or indirectly with any attorney or person acting on his behalf for the purpose of aiding, assisting or abetting such attorney in the solicitation of legal business or the procurement through solicitation of a retainer, written or oral, or any agreement authorizing the attorney to perform or render legal services.