posted 08-03-2003 09:58 PM         

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It's a thankless job, but somebody's gotta do it.

posted 08-08-2003 03:41 PM         

It looks like you and I are the only ones who stayed home!

posted 08-09-2003 12:27 AM         

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It's a thankless job, but somebody's gotta do it.

posted 08-12-2003 12:18 PM            

I was at the APA seminar all week pitching the Polygraph Place. I got to meet several people from the bulletin board and had an overall great time.

The next issue of the Chronicles will be all about the seminar so stay tuned to that for the details. I hope to put that out this Saturday if all goes well.

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Ralph Hilliard
PolygraphPlace Owner & Operator
http://www.polygraphplace.com

posted 08-20-2003 12:40 PM         

Thank you very much for that very interesting issue of The Polygraph Chronicles!

It's great that you were able to be there, and hope that more members will sign up for this message board. Thanks also for posting the pictures.

There were a couple topics of great interest to me that I'd be interested in hearing on from anyone who was there.

First, I think there was going to be a presentation on Middle Eastern cultural differences and there significance in connection with polygraph. Did anyone attend that? Comments?

Second, what is the latest thinking on countermeasures? Any new ideas for detection/deterrence and/or interesting anecdotes?

God bless and keep safe.

posted 08-20-2003 09:37 PM         

The National APA Seminars have always been a good learning experience for me, and this years seminar at Sparks was no different. I've always managed to 'pick up something' even when the lectures have been'repetitive' from past years. Sorry you couldn't make it.

I did not attend 'cultural differences' as I attended another subject matter, so I can't speak on it either, maybe someone else on this board can.

In regards to 'countermeasure' technology, Lafayette introduced their 'redesigned' activity sensor utilizing peizo sensors embedded in a flexible plastic-like material. Presently the 'piezo' activity sensor is only available for the 'seat' of the chair; however,Chris Fausett advised me they intend to include the piezo sensors for use under the arms and feet as well, much in the same way their current pneumatic system works. I'm ofthe understanding the intent is to be able to 'identify' the source of the movement as it occurs. The downside,as I understand it, in order to monitor the arms, legs, and seat, all the available remaining USB ports on the LX4000 would have to be used. Personally at this juncture, I will continue to use the pneumatic system until they refine the 'piezo' system a little better.

Lafayette also re-presented the 'voice activated' countermeasure detection system again (which was initially presented last year, but not available for retail). The acquistion sub-system and software essentially is based on 'multi-tasking' research and measures 'verbal response time' of the examinee to questions posed. The downside: [1] very little research; [2] data base used for decision is very small; [3] does not report on which questions (comparative/relevant) the countermeasure was being applied to, only if physical or mental countermeasures were being detected during the test; and [4] cost $1,400.

Frank Horvath gave a presentation where he displayed various charts for "group scoring"; he then showed the same chart with the 'activity sensor' line added which clearly showed a countermeasure methodology being used. - it was an 'eye-opener'.

Although not a countermeasure technology, there was a presentation on 'prototypes' being developed for DODPI to enhance detection of deception by including thermal imaging and pupil dilation. The downside- I believe it will be a long time before used by 'private' examiners, as I see it being cost prohibitive.

As a side note, Lafayette is now offering a'self-adhesive disposable pre-gelled ' EDA senor which should be less prone to artifacts.

Simultaneously video recording the examinee while obtaining chart data and saving both as part of the 'PF file'was also displayed. The downside, the "PF file" is huge.

Other lecture topics at the seminar included the typical Interview-Interrogation techniques; the Zone Comparison Technique; and PCSOT Testing as well as other lectures.

Hope the above info is of interest-

posted 08-20-2003 10:01 PM         

Thanks very much for the rundown! You sent me running to my dictionary to find out what a piezo sensor is!

piezometer : an instrument for measuring pressure or compressibility; esp : one for measuring the change of pressure of a material subjected to hydrostatic pressure

What makes this new piezo sensor better than others?

Apart from these new sensors from Lafayette, any new thinking on detection/deterrence in general?

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It's a thankless job, but somebody's gotta do it.

posted 08-20-2003 11:34 PM         

You asked: What makes this new piezo sensor better than others?
Right now I don't see a significant difference between the piezo activity sensor and the current pneumatic (air bladder) activity sensor, they both detect 'pressure' changes. There was not a 'side by side' demonstration, but it appeared to me as though the pneumatic system was just as sensitive as the piezo. If Lafayette continues their course however, the advantage of the piezo sensor is going to be able to 'tell' what body part is being moved.

As a side note, there are numerous different styles of piezo sensors as well as other sensor types designed to detect 'pressure and postion' changes. I'm not conviced at this point the 'piezo sensor' which Lafayette selected to use, is the 'best sensor technology' available.

You asked: Apart from these new sensors from Lafayette, any new thinking on detection/ deterrence in general?
Nothing on detection, except use an 'activity sensor' and don't leave home with out it. And two, during the pretest, invite the examinee to discuss what he has 'learned' about the polygraph via the internet and others; express your awareness of numerous internet antipoly-sites and never use the word 'countermeasure' or how you detected the countermeasure during the chart collection phase as the examinee will merely 'switch' to another methodolgy. Just stress the importance of the examinee giving his fullest cooperation during the test.

posted 08-27-2003 08:46 AM         

Sorry it's taken me so long to get back to you. I've been on the road the past week, with very limited internet access.

Thank you very much for the clarifications. I think movement sensors are a great thing, but there are situations where its just not practical to use them, so alternate methods of detection/deterrence are of utmost importance.

posted 08-27-2003 11:45 AM         

Just curious. In reference to your statement: "there are situations where its just not practical to use them."

posted 08-27-2003 02:17 PM         

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It's a thankless job, but somebody's gotta do it.

posted 08-27-2003 10:14 PM            

You could use the new Lafayette motion sensor even in your prescribed testing environment. It folds up to be small enough to fit into the front pocket of a brief case and requires no further attachments or sensor boxes, other than the Lafayette LX4000 instrument.

posted 09-15-2003 08:03 AM         

How effective is the new piezo sensor at detecting a sphincter contraction? George & Gino's how-to manual instructs the reader to sit on his hand while practicing this maneuver in an attempt to keep the muscle contraction "internal." Can the sensor accurately pick this up?

Just how does an internal sphincter contraction affect pressure distribution on the seat of the chair? My guess is that there might be slightly less pressure in the middle and more on the sides.

Also, has anyone else noticed that the 3rd edition of The Lie now lists MENTAL countermeasures as Numero Uno?

posted 10-21-2003 03:36 PM         

Ted

posted 10-24-2003 03:55 AM         

How have your motion detector trials been going? Is the motion detector a new model?

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It's a thankless job, but somebody's gotta do it.

posted 10-24-2003 07:03 AM         

I have only used it once so far and it performed flawlessly! Using other people at the office and just playing with it has shown that it seems to work very well. It is the current model.

posted 10-24-2003 08:37 AM         

It's good to hear those results. Did you in fact get detectable activity on the GSR channel?

What I meant by "new" in referring to the motion detector is whether it's any different from the old one that I'm familiar with that attaches to the leg of the chair. Have they moved to a seat pad like Lafayette?

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It's a thankless job, but somebody's gotta do it.

posted 10-24-2003 09:25 AM         

I got dual activity on the GSR and motion detector only when I was playing with it and having subjects intentionally use contractions.

This "new" motion dectector is one simple pad the subject sits on. It is very compact and portable.