Learn about what a Polygraph Examiner does, skills, salary, and how you can become one in the future. Smith & Associates Pre-Employment and Polygraph Services provides professional employee screening and examination services. We are located in Fairfax, Virginia and are also licensed to provide polygraph examinations in Maryland, North Carolina, Connecticut and Washington, DC. 39 Polygraph jobs available in South Carolina on Indeed.com. Apply to Evidence Technician, State Trooper, Communication Specialist and more! Search CareerBuilder for Examiner Jobs in Columbia, SC and browse our platform. Apply now for jobs that are hiring near you. Duties Summary Interviews suspects, witnesses, and other persons using a polygraph machine and standard polygraph techniques to diagnose truthfulness or deception; and performs other duties as required. Special Working Conditions:Irregular hours, holidays, weekends, and overtime as needed.