how come my polygraph examiner won't allow me to review my results specifically the graph data?
Your polygraph examiner is the person most qualified to answer that question. Why not ask him? I would be interested to know his answer.
He said unless it's the courts that are requesting it, then he doesn't show the data, he's a court certified examiner. This was for a private reason. And he said that couples argue as to what question there significant other should of passed or failed, he doesn't let couples decide. So he just sends the final results and doesn't show the data.
I think he's full of shit and in all likelihood simply doesn't wan't anyone to be able to independently review his work.