Quotehttp://fredericksburg.com/News/FLS/2006/072006/07062006/203276
Polygraphs are based wholly on pseudoscience
Paul Probus Jr.
Date published: 7/6/2006
I'm responding to Robert Gordon's letter ["Don't knock Caroline sheriff ignorantly ," June 27].
Mr. Gordon's last sentence referred to people picking subjects they "know nothing about." This applies to him, as well.
Apparently, Mr. Gordon is ignorant of the fact that polygraph tests have been proved, in study after study, to be unreliable and are based on pseudoscience.
It has been shown that it is only when the person administering the polygraph is able to convince the subject that the test is valid, that there are correlations between the readings given and the truth.
In other words, the person administering the test is a con man, and how convincing he or she is will determine whether the test results can even be considered close to being valid.
If Mr. Gordon is so quick to defend Sheriff Lippa's use of them, why does no criminal court in this country allow evidence produced by polygraph tests into courtrooms?
I do not believe that there are many civil courts in this country that accept their results, either.
Why? Because of the studies I mentioned above, which have proved their ineffectiveness.
Polygraphs are nothing more than tools used by prosecutors and defense attorneys to bolster their claims in the press.
Mr. Gordon's claim of not supporting Sheriff Lippa is a red-herring argument. It's not a matter of supporting Sheriff Lippa, since I am sure he is quite competent when it comes to law enforcement issues.
I would question his use of polygraphs to screen candidates for admission to the force, however--especially since their use could disqualify nervous candidates or cause potentially good candidates to not even apply, in order to avoid the hassle.
But if he is confident in building his house of cards on such a shaky foundation, who am I to interfere?
Paul Probus Jr.
King George
Date published: 7/6/2006