Criminal Minds

When a significant event happens, the human brain creates a memory of that event and stores it. When the individual is later cued by a stimuli on this event, the individual will recall their memory once again. Scientists are using this brain mechanism as a way to identify criminals and terrorists through Brain Fingerprinting technology.

Brain Fingerprinting technology detects whether specific information is stored in the brain by measuring brainwave responses to crime-relevant or terrorism-relevant words or pictures presented on a computer screen. Three types of stimuli are presented to the subject: 

1) “Irrelevant" stimuli: stimuli that are irrelevant to the investigation and the subject

2) "Target: stimuli: stimuli that are relevant to the investigation and are known to the subject

3) "Probe" stimuli: stimuli that are relevant to the investigation which the subject denies knowledge of 

While the suspect views these stimuli, their brainwave responses are measured using a headband with EEG sensors. A computer program then analyzes the data to determine if the crime-relevant information is stored in the brain. A specific, measurable brain response called the P300 is emitted by the brain of the guilty suspect who has stored details of the crime in their brain. Brainwaves are measured with a technique of called P300-MERMER (memory and encoding related multifaceted electroencephalographic response), developed by Dr. Lawrence Farwell.  

 By comparing comparing the brainwave responses to the three types of stimuli, the brain fingerprinting system mathematically computes a determination of information present (subject aware of crime-relevant information contained in the “probe” stimulus) or information absent (subject does not know information), and provides a statistical confidence for the determination. This computer-driven method could be a much more accurate method of catching criminals. 

http://www.larryfarwell.com/brain-fingerprinting-executive-summary-dr-larry-farwell-dr-lawrence-farwell.html

http://www.slideshare.net/PriyodarshiniDhar/brain-fingerprinting-30123748

https://en.wikipedia.org/wiki/Brain_fingerprinting

http://www.larryfarwell.com/Fairfield-Ledger-serial-killer-dr-larry-farwell-brain-fingerprinting-dr-lawrence-farwell.html