| At a meeting
organized by the Central Intelligence Agency, a group of distinguished
scientists evaluated the Polyscore algorithm developed by Johns
Hopkins University/Applied Physics Laboratory...the Polyscore algorithm
is used on Axciton and Lafayette instruments...NOT Stoelting. The
meeting was held at the APL facility and was attended by their representatives.
Excerpts of the scientists' comments are
below:
"The effects of amplifiers, filters, and
sampling procedures
have clearly adulterated the data."
"This is not a scientific project."
"...there is no reason to believe that the [algorithm] developed
at APL has any power whatsoever to discriminate between truthful
and deceptive subjects."
"In summary, the contractors [APL] have
developed, delivered, and sold an algorithm
to separate DI from NDI subjects that has no
demonstrated validity."
A complete copy of the peer review of the scoring algorithm used
by Axciton and Lafayette follows. For your convenience, we have
italicized some of their more significant comments. Thank you for
your interest in Stoelting's Computerized Polygraph System. Only
Stoelting determines a suspects truthfulness using software based
on data from verified criminal investigations.
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