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  Prison Polygraphs

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Author Topic:   Prison Polygraphs
nonameone
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posted 04-14-2004 11:37 AM     Click Here to See the Profile for nonameone     Edit/Delete Message
I am a retired police oficer who did polygraphs while employed wiht the P.D. Now, I give polygraph exams in a prison to inmates who are the accused and/or the accusers of crimes and rules infractions. My experience is that because of inmates' past criminal histories I see a super dampening effect on exams. Another problem is a lack of psychological set while testing inmates who "witnessed minor rules infractions." Many times I am asked to test whether the inmates "heard" someone specifically say something. I am constantly trying to explain to others that testing these indivduals is difficult and not advisable. I think some of them just think I dont want to do the exams which is not the case. Does anyone have any thoughts on this issue? Do I have a point or am I being too obstinate?

[This message has been edited by detector (edited 05-01-2004).]

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Barry C
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posted 04-15-2004 07:15 AM     Click Here to See the Profile for Barry C   Click Here to Email Barry C     Edit/Delete Message
Have you considered running and AF MGQT as a single-issue test. Since there's no symptomatic / outside issue question, you can't stimulate him to one. (That doesn't stope him from being concerned, but at least you're not assisting him to do so. FYI, I read a study - I think a DoDPI study - which found symptomatics did nothing for guilty examinees, but reduced an innocent examinee's score by one point. It's only one study, but it's something to think about.)

(You can run a two, three or four RQ test. See the AAPP's "Examiner's Handbook" for details if you're not sure how to run one.)

It does sound as if your issues are rather weak, and you might be very wise to refuse many of the exams. For those you do decide to go through with, you can consider having the subject make a very brief statement to you about the issue, and then test on whether the statement is false. You can use all lie comparisons to avoid (perhaps) the dampening problems you mentioned. If you do so, you'll be able to let the examinee know you don't care about other crimes he might have committed since that's not the issue you are there for.

You're not in a good situation, but you can help yourself out a little by trying some other approaches. Personally, I wouldn't do such a test without consulting / brainstorming with other competent examiners before meeting the examinee. It's a confidence booster when you can say it's not just your opinion the test isn't worth the trouble or risk of a likely inaccurate conclusion.

Good luck.

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Lieguy
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posted 07-07-2004 10:50 PM     Click Here to See the Profile for Lieguy   Click Here to Email Lieguy     Edit/Delete Message
I agree with Barry on the statement approach. When I have indistinct issues, I have the subject write down their story and poly them on the accuracy of the statement. This also works well on crimes or events that happened in the past, because the statement is in the "here and now" and brings it to the present.

Chip

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