The Lie Behind the Lie Detector The Lie Behind the Lie Detector's popular free book on polygraph validity, policy, procedure, and countermeasures. Be sure to download a copy ( PDF / EPUB / MOBI ). Post comments, criticism and suggestions for new editions here.
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Mental CMs?
Does anyone have experience using a memorized prayer or mantra while taking a polygraph and itís effectiveness as a CM?

Started Apr 20th, 2021 at 3:01pm by Sammy (Guest)
3 1425 Last Post Apr 22nd, 2021 at 7:07am
By: George W. Maschke
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Meds and Polygraph Exams
I currently take a muscle relaxer and an antidepressant for depression (cyclobenzaprene and Cymbalta). Do these meds effect my results on a polygraph?

Started Apr 20th, 2021 at 3:21pm by Sammy (Guest)
This topic contains 2 attachments
1 984 Last Post Apr 21st, 2021 at 4:58am
By: George W. Maschke
Hot Topic (More than 15 Replies)
Tongue Biting? *Please Help*
My last post didn't gain a response. Perhaps this one will (I have my test coming VERY soon and I'm nervous). This probably sounds like a stupid question but I'll ask it anyway. Someone please help me...

Started Jul 18th, 2005 at 11:45pm by nopolyman
« Pages 1 2 »
15 27132 Last Post May 4th, 2020 at 7:17pm
By: Frank (Guest)
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10 of the same questions. Stefano please help.
If the poly test is based on ten exact same questions but in diffrent order does that mean its relevant / irrelevant test?

Started Feb 27th, 2012 at 6:02am by yessur (Guest)
2 4356 Last Post Feb 9th, 2018 at 7:37pm
By: uncertain2018
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Even CIA admits they're BS
I'm new here so I'm for sure if this is the right place to post. 
Recently, I was on the CIA's FOIA Library page looking through the CREST database. I was look at the shockingly homophobic memos/...

Started Jul 14th, 2017 at 9:54pm by jackmac82
1 3069 Last Post Jul 15th, 2017 at 4:49am
By: xenonman
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Poll: Interesting TV Program
Greetings and Happy New Year wishes to the anti-polygraph community.† Yesterday I watched TV while working out at a local fitness club and unfortunately didn't have the ability to record details of th...

Started Jan 1st, 2016 at 11:07pm by Wandersmann
3 5671 Last Post Mar 6th, 2017 at 6:26am
By: xenonman
Hot Topic (More than 15 Replies)
Didn't work for me
I had only a few days to take a polygraph prior to a grand jury hearing.† I wanted to know more about polygraph testing before I took the test because I worked for a police department and did not like...

Started Jan 26th, 2013 at 3:27pm by Confused 2
« Pages 1 2 »
17 20910 Last Post Feb 24th, 2017 at 12:05pm
By: xenonman
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Polygraph Coming Up. How to Prepare?
Have a polygraph coming up with a federal agency in a few weeks. Is it too late to prepare? I've read over the relevant chapter in TLBTLD. Anything else I should be doing to prepare? 
Also, what ...

Started May 26th, 2016 at 1:53pm by vjones (Guest)
8 9289 Last Post Jan 2nd, 2017 at 8:30pm
By: xenonman
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now i know for sure polygraph is bogus
  ???my best friend decided because of her live-in boyfriend's secretive behavior, that he was secretly carrying on a relationship with me. there was absolutely no truth to this--i never talked to him...

Started Aug 2nd, 2002 at 6:15pm by evi1919
9 16409 Last Post Jan 31st, 2015 at 4:41pm
By: Dan Mangan
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Breathing CM
I've read several posts about the breathing CM and also read about different types. I apologize if I have missed it or something but should I remember one breathing CM and stick to it? Of course I was...

Started Sep 13th, 2014 at 10:32pm by Fly Guy (Guest)
3 6746 Last Post Sep 16th, 2014 at 1:17pm
By: George W. Maschke
Very Hot Topic (More than 25 Replies)
irrelevant questions
hi i am going to take a polygraph very soon and i was wondering if the polygrapher uses irrelevant questions, instead of control questions, should i treat the irrelevant as control questions and imply...

Started Dec 14th, 2013 at 9:31pm by roger (Guest)
« Pages 1 2 »
28 24662 Last Post Dec 19th, 2013 at 2:39am
By: Ex Member
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Relevant/Irrelevant Countermessures
I'm sorry but I do not understand the statement of varying your responses to two differing groups of  two relavent questions in two different chart presentations. ( I know that is not a direct quote)....

Started Feb 23rd, 2012 at 6:59pm by Stressed
2 4813 Last Post Jul 11th, 2012 at 11:54am
By: Daniel Rustburn (Guest)
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CM vs relevant question breathing pattern
The CM technique explained in TLBTLD does make sense. I have a question though. If you use breathing CM for a control question, let's say hold your breath 4 - 5 seconds. At the same time, you also hav...

Started Oct 18th, 2009 at 12:01am by tedt3526
9 13721 Last Post Jul 11th, 2012 at 11:44am
By: Daniel Rustburn (Guest)
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Can a CM be to much of a Cm?
Can you be so good at a Cm by practicing that it becomes to much? Is it possible that an increase in heart rate can be way to much or does a computer polygraph not measure how much it inceases (Beats ...

Started Mar 31st, 2012 at 1:39pm by planostano (Guest)
0 2886 Last Post Mar 31st, 2012 at 1:39pm
By: planostano (Guest)
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Breathing question ???
Hello just got done reading your publication Lie Behind The Lie Detector for the second time. Great work.
What I am wondering about is in chapter 4
"As soon as you recognize that the questio...

Started Mar 2nd, 2012 at 10:44pm by Joebrown (Guest)
1 3856 Last Post Mar 2nd, 2012 at 11:50pm
By: joebrown (Guest)
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Possible CM?
I'm not sure if everyone is physically capable of doing this but it seems forcibly blurring your own vision (causing pupils to dilate) would generate a physical respone akin to the anal sphincter meth...

Started Feb 19th, 2012 at 5:48pm by polypoppolypop
12 10118 Last Post Feb 22nd, 2012 at 10:31pm
By: RoamingBack
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Time to update references in The Lie Behind the Detector?
Are there any plans to update the references in The Lie Behind the Detector.  Several of the links are broken (just a few examples below) and I'm sure by now that updated material is available.  Perha...

Started Sep 12th, 2011 at 7:52pm by Anthony
3 5346 Last Post Oct 3rd, 2011 at 5:38pm
By: George W. Maschke
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Volitional Polygrph Question
I work in an environment where many of my coworkers have opted for a higher level of clearance and were required to take a polygraph as part of the process.  I have been considering following suite as...

Started Aug 26th, 2011 at 3:50am by qrqzz88 (Guest)
12 10192 Last Post Sep 4th, 2011 at 12:35pm
By: pailryder
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TLBTLD: Control/Relevent questions
Okay, just got through reading the section in the book regarding types of questions starting on page 86.  I think I get it but am still a but puzzled.
I understand the relevent questions.  I unde...

Started Aug 16th, 2011 at 5:17pm by confused0323 (Guest)
5 7369 Last Post Aug 21st, 2011 at 9:56pm
By: stefano - Ex Member
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