I will leave the validity and accuracy of the polygraph alone for now.  My concern is that some of you posting on here are applying for jobs in law enforcment and this is a position that requires so much integrity, especially the FBI, yet you so willingly lie and cheat in attempts to pass the requirements for this postion.  This really scares me, it seems as though you are saying you have justification because you feel you are qualified for this position so what you are doing is ok.  What happens when it is time to go after a suspect and you cant get the evidence you think you need, do you  then make the decision to fabricate that evidence or lie about something because you think it is right.  I pity the agency that hires you and the suspects you unjustly put away because you thought they were guilty.