[rusticgal]

Originally Posted by Niamh.

I don't think you can use a polygraph as evidence in court because of that which is why the detectives were pushing for a confession so hard, I also think its why they made the suggestion to him that maybe Shanann had killed the girls, to make him feel like he can confess without confessing to being evil, kind of a thing? It was pretty clever I thought

No Niamh...they cannot be used.
His arrogance...he must have thought their was a chance he would pass it. However guilty or innocent you should always have a solicitor. The police must have been punching the air...