PCASS And The Original Handheld Lie Detector

The Preliminary Credibility Assessment Screening System (PCASS) is a handheld lie detector to be given to US Army soldiers in Afghanistan this month.


( Preliminary Credibility Assessment Screening System (PCASS) )

The defense department admits that the device is not perfect, but insists that it can help save American lives by screening local police officers, interpreters and allied forces for access to U.S. military bases, and by helping narrow the list of suspects after a roadside bombing.

However, the National Academy of Sciences has this to say about lie detectors:

"Almost a century of research in scientific psychology and physiology provides little basis for the expectation that a polygraph test could have extremely high accuracy... The inherent ambiguity of the physiological measures used in the polygraph suggest that further investments in improving polygraph technique and interpretation will bring only modest improvements in accuracy."

When asked specifically about the PCASS device, the lead author of the study, statistics professor Stephen E. Fienberg, stated:

"I don't understand how anybody could think that this is ready for deployment. Sending these instruments into the field in Iraq and Afghanistan without serious scientific assessment, and for use by untrained personnel, is a mockery of what we advocated in our report."

The first work on the idea of a lie detector was done by William Moulton Marston during WWI; he worked on a systolic blood-pressure test that could be used to detect deception.

He also created an illustrated version of a special handheld lie detector in a well-known fictional work; see a brief video of this device in action.


(The original handheld lie detector)

The Lasso of Truth (also called the Magic Lasso or Golden Lasso) forces a captured person to tell the truth in the Wonder Woman comic series.

Via New anti-terror weapon: Hand-held lie detector.

Scroll down for more stories in the same category. (Story submitted 4/12/2008)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 1 )

Related News Stories - (" Security ")

Flimmer Navy Drone Flies And Swims
Launch the Flying Sub!

Indian Court Says Brain Scan Proves Murder
Using a test called Brain Electrical Oscillations Signature, an Indian court convicts a woman based on her brain contents.

Background Draw-a-Secret (BDAS) Makes Graphical Passwords
Interesting security technique that takes advantage of the greater ease with which we all recall pictures, as opposed to the kind of alphanumeric strings IT techs want us to use for passwords.

ID-U Biometrics Eye Tracking Signature
Interesting new method of secure identification gathers a unique response to stimulus each time; old data cannot be copied and presented to the system.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Superstrong Multilayer Metal-Graphene Composite Material
Negligible increase in weight increased material strength by hundreds of times.

Deepfakes Imperil Democracy (George Orwell, Right Again)
'All history was a palimpsest, scraped clean and reinscribed exactly as often as was necessary.'

String Art Courtesy Of Robot Artist
The number of different ways to span a thread between a larger number of hooks is astronomical.

Still Wondering If You'd Work For A Robot Boss?
'This is all coming to you courtesy of the simstim unit wired into your deck, of course.'

World's First Autonomous Tram In Germany
What's it like for autonomous trams when they're turned off at night?

Sleeep PRO Earplug For Maximum Rest
'Merton... placed the electrodes of the sleep-inducer on his forehead.'

Inspired By Japan, Nap Pods For Hajj
It's always a good time for a nap.

Amphibio 3D Printed Gill Shirt
'... we can descend and live down there at one of those year-round aquatic resorts.'

How Do You Put An Asteroid Into Earth Orbit? Carefully!
'...she would have to be coaxed by another series of pats into a circular orbit.'

PD Aerospace Space Plane By 2023
'The sleek, tapered space shuttle lay immobile upon the private landing field...'

Foldimate Folds Your Clothes Perfectly
Look ma, my room is clean! I can hear you now.

Robots Help People Get Dressed, As Predicted In 1931
Yes, people of the future, robots will dress you.

International Space Station Leak Plugged - With Finger
'These tag-alongs search out stray leaks.'

Robot Snake Flies, Fights Fires
Just a prototype, but still amazing.

IPAL Chinese Robot Babysitter
'But Nanny is different...'

ZKZM-500 LASER Assault Rifle
'The Iranian reached back into the locker and got a pair of laserifles.'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.