[tech] Brain Scan Lie Detection could be Used in Court for First Time

5 05 2010

It is known as fMRI, and it measures blood-oxygen level in the grain. According to experts, when someone lies, the brain sends more blood to a certain part of the brain (ventrolateral area of the prefrontal cortex). The study so far shows accuracy ranging from 76% to over 90%, but is this good enough to be used in the court of law?

The lawyer, David Levin, wants to use that evidence to break a he-said/she-said stalemate in an employer-retaliation case. He’s representing Cynette Wilson, a woman who claims that after she complained to temp agency CoreStaff Services about sexual harassment at a job site, she no longer received good assignments. Another worker at CoreStaff claims he heard her supervisor say that she should not be placed on jobs because of her complaint. The supervisor denies that he said anything of the sort.

Are we seeing the end of days for pulse based lie detection? After all, movies have taught us how to make pulse based lie detection unreliable by simply poking yourself with a tac when asked questions.  That’s my take.

[ Wired ]

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