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19. I would say at once that this view is not based on a fear of the inaccuracies of the polygraph. On that question we were not supplied with sufficient evidence to reach a conclusion. However, it may be said that even the finding of a significant percentage of errors in its results would not, by itself, be sufficient ground to exclude it as an instrument for use in the courts. Error is inherent in human affairs, scientific or unscientific. It exists within our established court procedures and must always be guarded against. The compelling reason, in my view, for the exclusion of the evidence of polygraph results in judicial proceedings is two‑fold. First, the admission of polygraph evidence would run counter to the well established rules of evidence which have been referred to. Second, while there is no reason why the rules of evidence should not be modified where improvement will result, it is my view that the admission of polygraph evidence will serve no purpose which is not already served. It will disrupt proceedings, cause delays, and lead to numerous complications which will result in no greater degree of certainty in the process than that which already exists.
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