In 1993, while Clark lived and practiced in Indiana, a former patient complained to the Indiana attorney general. An investigator for the Indiana Department of Health and a deputy attorney general visited her office as part of a sting operation. Clark proceeded to test the investigator and "told him he had the HIV virus , but said that he did not have cancer." She told the investigator that she could cure his HIV in 3 minutes, but that he would "get it back" unless he committed to returning for six more appointments. She then ordered blood tests from a laboratory.