I would like to see the statistics on police corruption when comparing departments that utilize the polygraph in their hiring processes and ones that do not.  The department I work for is a large one, and it strongly relies on the polygraph while screening new hires.  However, I see far too many recruits that I feel should not have been hired.  Not to mention how many we've hired that have been formerly charged and/or investigated about illegal behavior.  The irony lies in the fact that all of these "bad apples" were cleared by their polygraph examiners as suitable for hire.  What does this leave any rational person to think about the supposed benefits of utilizing polygraph exams.