What’s wrong with ‘Lie-detectors’

I AM a sophomore in high school and am writing an essay about the cons of polygraphs.

I have to have an interview with one of my sources – so I was wondering if someone who is an expert on polygraph testing at Anti-polygraph could answer a few questions for me. Also, if you answer these questions, could you please include your first and last name, your job title, and why you are an expert on polygraph testing.1. When are polygraph tests used?2. What is the accuracy of polygraph tests?3. Why are polygraphs not used as evidence in court unless both sides agree to them?4. What are the problems with polygraph testing?5. Can polygraphs be considered an invasion of privacy and why?6. If polygraphs are not 100 percent correct, then why are they used?7. Is it true that a person can be taught to beat a polygraph and if so how?8. Can different polygraph examiners interpret a polygraph differently?Anonymous Via-email Name and address provided – EdAlso, if you answer these questions, could you please include your first and last name, your job title, and why you are an expert on polygraph testing.1. When are polygraph tests used? 2. What is the accuracy of polygraph tests?3. Why are polygraphs not used as evidence in court unless both sides agree to them?4. What are the problems with polygraph testing? 5. Can polygraphs be considered an invasion of privacy and why?6. If polygraphs are not 100 percent correct, then why are they used?7. Is it true that a person can be taught to beat a polygraph and if so how?8. Can different polygraph examiners interpret a polygraph differently?Anonymous Via-email Name and address provided – Ed