I have been a reader/lurker to this forum for quite some time.

I can testify to the fact that polygraphs are a joke, a waste of time and are basically a crutch used by law enforcement in place of good investigative work.

You know that already, otherwise you would have not posted the tripe that I am replying to.

I understand that you, being a cop, have to preach the party line.  That is, you preach the line only because you don't want to admit that many, not all, in your profession are just one step away from being on the other side of the thin blue line.

Polygraphs are crap, period.