What are the three reasons why you shouldn't take a polygraph test?

First, statements made before or after a polygraph test can be admitted in court as evidence, even though the test results themselves likely won't be. Investigators can also manipulate this process by falsely claiming you failed to pressure you into a confession. Second, police often use polygraph results to determine whether to charge you and to what extent, despite their inadmissibility in court. Third, innocent people can fail polygraph tests due to emotional responses, making these tests unreliable for determining truthfulness.