The four accused in the Hathras case were said to undergo brain fingerprinting, the neuropsychological interrogation.
Background:
The brain fingerprinting technique was first developed and patented in 1995 by Lawrence A. Farwell of the U.S.A. Police in India has used brain fingerprinting since 2003.
What is Brain Fingerprinting?
In brain fingerprinting, a headset with two electrodes is put on the head of the suspect. One electrode is placed on the forehead between the eyebrows while the other is put on the back of the head where the brain stores experiential memory.
The electrodes are connected to a laptop with brain fingerprinting software. Details and photographs of the crime scene which are not in the public domain are projected on the screen in front of the suspect.
If the suspect is involved in the crime the moment he sees the details, his brain recognizes the picture and sends a specific, measurable brain response to the software.
In 1997, Indian neuroscientist Champadi Raman Mukundan developed a different technique called the Brain Electrical Oscillatory Signature (BEOS) Profiling.
What is the BEOSP test?
BEOS is an electroencephalogram (EEG) technique by which a suspect’s participation in a crime is detected by eliciting electrophysiological impulses.
The technique also referred to as a type of ‘brain fingerprinting, has been categorized as “noninvasive” and a legitimate neuro-psychological method of interrogation.
Other important tests
These tests, which are often used as an aid during investigations by probe agencies, are different from each other but are all aimed at collecting vital information.
Narco-analysis is a controlled administration of intravenous hypnotic medications called truth drugs on a suspect to procure vital information.
A polygraph, popularly referred to as a lie detector, is an instrument that measures and records several physiological indices such as blood pressure, pulse, respiration and breathing rhythms, and skin conductivity while a suspect is asked a series of questions.
Deceptive answers are said to produce physiological responses that can be differentiated from those associated with non-deceptive answers.
Brain Fingerprinting Technology
Context:
The four accused in the Hathras case were said to undergo brain fingerprinting, the neuropsychological interrogation.
Background:
The brain fingerprinting technique was first developed and patented in 1995 by Lawrence A. Farwell of the U.S.A. Police in India has used brain fingerprinting since 2003.
What is Brain Fingerprinting?
What is the BEOSP test?
Other important tests
These tests, which are often used as an aid during investigations by probe agencies, are different from each other but are all aimed at collecting vital information.