I thought I would share my experience from some years ago.  I was absolutely dreading the polygraph.  I was hoping they would forget about me when the time came.  Unfortunately for them I found this site and it's contents.

I have been gainfully employed for the better part of six years at this point. They weren't able to stump me on any of the three polys I took.  For those of you reading, I would share this info with your friends and family applying to and LE job.  The process was tough, but I ended up not being accused of anything I didn't do.

A bit off topic.  One of my former co-workers who was a total asshole to everyone, applied to different dept.  He had to take another poly and made a whole bunch of admissions to things he didn't think were a big deal.  Well the dept in question did, and reported him to Internal Affairs. IA fired his dumbass from his current job, and now he'll never work in Law Enforcement again.

Do your homework kids!