MovieChat Forums > Amanda Knox (2016) Discussion > Why were no polygraphs done?

Why were no polygraphs done?

posted 8 years ago by lesley-63036
8 replies | jump to latest

I am leaning towards that Amanda and Raf are innocent...however the more I research there is some doubt there...

I was the same with making a murderer I was leaning towards that Avery and Dassey are guilty but again there is some doubt...

At the end of the day it should be open and shut black and white...but it isnt - why not!!

Anyways back to my topic why are lie detector / polygraphs not used in cases like this??

[–] micirisi 8 years ago

The machine was undergoing repair in Naples.

He killed sixteen Czechoslovakians. Guy was an interior decorator.

[–] valkor-1 8 years ago

Because polygraphs are inadmissible and not reliable.

[–] lesley-63036 8 years ago

Still...would have been interesting

[–] knifeparty2004 8 years ago

lol @ polygraphs.

[–] puirt-a-beul 8 years ago

Anyways back to my topic why are lie detector / polygraphs not used in cases like this??

Because they prove nothing.

Despite what you'll hear on junk TV like "Dr Phil", they have nothing to do with people lying. They measure physiological symptoms, like raised blood pressure, sweating and fine muscle tremors, that are generally associated with anxiety. The theory is that if someone's anxious, it must be because they're afraid of the questions and therefore aren't telling the truth.

But it's codswallop. That's why it's not allowed as evidence in court.

You might very well think that. I couldn't possibly comment.

[–] knifeparty2004 8 years ago

hear hear

[–] cprattville 7 years ago

Also I hear the one asking the polygraph actually decides if lying or not is based on the 2 interviews the tester gives, one prior to the test and one immediately after. Plus the tester is only allowed to ask a couple question during the test. They are allowed to ask those 1 or 2 questions different ways.

[–] Corpis_Vile 7 years ago

She's is 1000% innocent.After years of research I finally came to the conclusion that I'm an idiot.

Hey, look at that! She's not crazy, she's being chased by a cheetah!