After completing their studies, aspiring polygraph examiners must enter an internship with a polygraph firm. During this time, you’ll get on-the-job training from qualified polygraph examiners, following them in the field and shadowing their work.

After completing an internship of 12 to 18 months, you’re ready to sit down at the examiner’s desk and conduct your first polygraph exam. It’s important to note that your learning doesn’t stop after graduating from polygraph school, certification programs, and your internship.

As a polygraph examiner, you’ll have to maintain your industry knowledge through self-based learning of changes in the industry changes. You’ll need to stay on top of new polygraph instrumentation and software releases, learning how to integrate them into your work through short courses.