Brain fingerprinting is an investigative technique developed by Dr. Lawrence Farwell that uses electroencephalography (EEG) to measure brain wave responses to stimuli related to a crime. The technique presents the test subject with target stimuli relevant to the crime, irrelevant stimuli with no relation, and probe stimuli known only to the perpetrator. If the brain produces a specific brain wave response, P300 MERMER, to the probe stimuli, it suggests the subject has information about the crime in their brain. Brain fingerprinting provides a scientific means to identify perpetrators and exonerate innocent suspects with a low error rate and immediate results. However, it does not determine intent and requires time to properly conduct.

1. Brain fingerprinting
Presented by
Mounika
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2. Contents
• Development
• Introduction
• Definition
• Technique
• Scientific procedure
• Operation
• Advantages
• Applications
• Conclusion
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3. Development
• Brain fingerprinting was developed in
United States of America
• It was invented by Dr. Lawrence A.Farwell
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4. Introduction
• Brain Fingerprinting is a investigative
technique.
• Brain Fingerprinting is based on the
principle that the brain is central to all
human acts.
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5. What is Brain fingerprinting?
Brain Fingerprinting is a new computer based technology
to identify the perpetrator of a crime accurately and
scientifically by measuring brain wave responses to crime
relevant words or pictures(stimuli) presented on a
computer screen.
Brain fingerprints are measured by an EEG event-related
potential,P300-MERMER
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6. Technique
• The person to be tested wears a special headband with electronic
sensors that measure the electroencephalography from several
locations on the scalp.
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7. • In order to calibrate the brain fingerprinting system, the testee
is presented with 3 types of stimuli.
Target stimuli: are made relevant and noteworthy to
subject
Irrelevant stimuli: have no relation to the situation under
investigation.
Probe stimuli: relevant to the situation under investigation
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Scientific procedure

8. MERMER (memory and encoding related multifaceted
electroencephalographic response)is elicited when an
individual recognizes and processes an incoming stimulus
that is significant or noteworthy.
Cntd..
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9. • Results of tests for 3 kinds of stimuli are
represented in 3 colored lilnes
Information the suspect is expected to know
It arises due to target stimuli.
Information not known to suspect
It arises due to irrelevant stimuli
Information about crime that only perpetrator would
know.
It arises due to probes.
Cntd…
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10. Cntd….
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"information present""information absent"

11. Operation
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12. Advantages
• Brain fingerprinting has been thoroughly
and scientifically tested.
• The rate of error is extremely low
• Provides immediate scientific result
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13. Applications
• Test for several forms of employment,
especially in dealing with sensitive military
and foreign intelligence screening.
• Criminal justice
• Counter terrorism
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14. Disadvantages
• Takes the fair amount of time to set up &
conduct properly
• Brain fingerprinting detects only
information, and not intent.
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15. Conclusion
Brain Fingerprinting is a revolutionary new scientific technology
for solving crimes, identifying perpetrators, and exonerating
innocent suspects in actual criminal cases, and other
applications.
The technology fulfills an urgent need for governments, law
enforcement agencies, investigators, crime victims, and falsely
accused, innocent suspects.
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17. Thank you
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