Interesting post. In Mr. Barland's conclusion he states:

"I believe that the irregularities in this examination would be more likely to create an inconclusive result than an erroneous one."

Really Mr. Barland?--you have conducted experiments to show you can predict how an "irregularity" affects the tracings? It never fails to amaze me how these polygraphers pull such things out of their hats; it's akin to Astrology and Phrenology.