Yeah

They (at least in this state) have a book of questions that you answer and then they ask you (basically) if you were truthful in your answers. They can spend a lot of time trying to get you to confess to some juicy dirt but stand your ground. A polygraph test is just an intimidation technique used for interrogation. But it sure doesn't hurt to how the tester operates and thinks... https://antipolygraph.org/ (use Tor Browser to access the site on the left as the site has been monitored in the past) On the right side of the page you will find a box linking to "The Lie Behind the Lie Detector." A 220 page pdf ebook on polygraph validity, policy, procedure, and countermeasures. Read this book with emphasis on chapter 4. Most important... show up for the "test" early (10-15 min should do) as this demonstrates that you are not dreading your test.