Quote from: George_Maschke on Jan 25, 2014, 05:54 AMJohn R. Schwartz, who heads the U.S. Customs and Border Protection polygraph unit, claims in a memo to the American Polygraph Association that "sophisticated countermeasures can be routinely identified":
https://antipolygraph.org/blog/2014/01/25/cbp-polygraph-chief-john-r-schwartz-claims-sophisticated-countermeasures-can-be-routinely-identified/
However, Schwartz adduces no evidence to support this claim, and did not respond to a request for comment. Any input from knowledgeable sources would be welcome.
Quote from: George_Maschke on Jan 26, 2014, 04:57 AMCommon Sense,
Thank you for sharing your thoughts and experience with polygraph countermeasures. With respect to tongue-biting, the available research suggests that it is not detectable through physical observation.
Quote from: Arkhangelsk on Jan 26, 2014, 07:05 AMQuote5. Squeezing Your Anus - You sit on a seat sensor.The polygraph machines knows when you squeeze your butt, wiggle your butt, or pass gas.Bad idea.George,
Are any data available on the efficacy of these "butt pads?"
Quote5. Squeezing Your Anus - You sit on a seat sensor.The polygraph machines knows when you squeeze your butt, wiggle your butt, or pass gas.Bad idea.George,
QuoteLafayette Instrument announces the availability of the Masseter Headphone System (MHS), a unique approach to detecting facial and jaw movements during a polygraph examination.
The Masseter Headphone System is designed to detect and record movements in the Masseter muscle of the mandibular region during the recording phase of a polygraph examination, sensing activities of the tongue, clenching of teeth, and other jaw-line actions. The Headphones are fitted with highly sensitive transducers that allow for on-screen observation and recording of Masseter muscle activity.
The MHS provides high-quality sound, a comfortable fit, and listening/audio-recording versatility. Issues with outside distractions and examiner's voice fluctuation are mitigated by the system's ability to play prerecorded questions through the noise suppressing headphones. This reduction in outside stimulus will aid the examinee's concentration on the exam.
The Model 76879HM includes connections for the LX5000 only. For more information about the Model 76879HM-C (for the LX4000), view the RELATED PRODUCTS tab.
Quote from: Drew_Richardson on Jan 25, 2014, 10:53 AMGeorge,
As you point out, if the document claims were anything more than bluff and bluster, it would certainly be in the polygraph community's interest to present (publicly and loudly proclaim) the evidence for such with the likely result that countermeasure attempts would be diminished if not altogether stopped in the face of certain detection.
Although I can think of a couple of other things to add to your list of indirect evidence that this document is nothing more than the usual smoke and mirrors and aggrandizement on the part of the polygraph community's leadership for the encouragement and motivation of the greater peanut gallery, it is not such that still leads me to believe counter-countermeasure efforts are largely unproductive.
It is also not that I am convinced that would be teachers of polygraph countermeasures are inherently smarter or more skilled than those who would detect such countermeasures... Certainly the latter community is much larger than the former and would, no doubt, include some of the best talent government money could buy.
It really comes down to this...I believe that the normal examinee physiology as displayed at the time of score-able responses and in the absence of countermeasures during a polygraph examination has greater variation than exists with (and will include) score-able responses produced as a result of well-executed countermeasures.
Although a different subject, the substantial variation previously referred to in the last paragraph is also consistent with a lack of diagnostic validity for lie detection in the absence of countermeasures.