lie detection systems
DESCRIPTION
LIE DETECTION SYSTEMS. THEORY AND OPERATING PRINCIPLES. AUTONOMIC NERVOUS SYSTEM. Polygraph-Biometrical Measurements. 1. Cardiovascular (heart beat, blood pressure) 2. Respiration 3. Galvanic 4. Brain Waves 5. Muscular Contractions. BIOMETRICAL LINEAR GRAPHS-POLYGRAPH. 1.- 2.- 3.- 4.- - PowerPoint PPT PresentationTRANSCRIPT
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LIE DETECTION SYSTEMS
THEORY AND OPERATING PRINCIPLES
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AUTONOMIC NERVOUS SYSTEM
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Polygraph-Biometrical Measurements
1. Cardiovascular (heart beat, blood pressure)
2. Respiration 3. Galvanic 4. Brain Waves 5. Muscular
Contractions
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BIOMETRICAL LINEAR GRAPHS-POLYGRAPH
1.- 2.- 3.- 4.- 5.
EXTREMELY SUBJECTIVE GRAPHS TO INTERPRET
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THE “INCONCLUSIVE” PHENOMENOM, MONOPOLY OF EXAMINER, VOLUNTARY
EXTERNAL EFFECTS
Inconclusivity
Danger of a single analyst
The “thumb tack” effect
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V. S. A.
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EXCESSIVE STRESS:Low level detection
from the Voice
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VSA “Excessive” Stress Micro-Tremors in vocal chords –
LIPPOLD effect in the 8-12Hz range- Normal voice range 90-200Hz-
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VSA-LIE DETECTION IN INVESTIGATIVE PROCEDURES
POLYGRAPH Invasive method It cannot be applied without the
knowledge of the subject Cannot be used over a phone
line Cannot analyze previous
interrogations Inconclusive results More costly Analysis only in one location
(one on one)
VSA Non-Invasive method It can be applied without the
knowledge of the subject Can be used over a phone line Can be used with previos
recordings No inconclusive results Less costly Can conduct analysis in multiple
locations
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VSA G3Voice Stress Analyzer
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VSA MARK-2000Voice Stress Analyzer
(earlier model)
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VSA 15 Handheld Voice Stress
Analyzer (earlier model)
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Answer the following questions:
1. How do you know that the person you are hiring is not or has not been involved in fraud, extortion, selling of company information, or is on the borderline of the law?
2. How do you know that your employees are conducting their functions properly and are not involved in criminal circles?
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Answer the following questions:
3. In cases of missing money, false currency, alteration of information, and fraud…How do you determine who is involved?Is it only one person or a group or gang?Is someone in your company leaking information?
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Answer the following questions:4. How do you determine if critical processes within your company are conducted properly?5. Have you had the need to evaluate an employee because you have certain suspicions?6. How do you evaluate an employee that you do not see? That is not in front of you? Who is in another city or country?
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VSA – Working Principle
By analyzing micro-tremors in the vocal chords of spoken responses to specific questions of concern.
This subconscious reaction cannot be controlled, especially when the questioning is done by a trained expert.
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VSA
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VSA - Applications
Personnel Selection. Investigations.
– Frauds– Robbery– Loss of Information
Audits and control of Personnel in critical positions.
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VSA - Advantages
The analysis can be conducted:– In person – even without the subject’s
knowledge.– Via telephone lines.– With recent or older recordings.– In remote locations with the subject away from
the VSA unit.
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VSA - Advantages Multiple analysis from different locations
simultaneously Visual record is possible with covert
camera Numerical read-out No inconclusive results Immediate results Print-out of the results
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VSA - Users
Police Departments in the USA:– More than 1000 –More than 2,200 trained
users -California (120) -Florida (106) -Missouri (103)
– Ohio (101) Indiana (76) -North Carolina (40) -Georgia (30) -New York (35) -Wisconsin (25)
– New Jersey (23) -Louisiana (20) -Maryland and Minnesota (15)
– 17 Police Schools
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VSA - Users
Police Departments of St. Louis, Miami, Cincinnati, Fairbanks, AK, PD, Prescott, AZ, PD, New Orleans PD, Washington, D.C., Metropolitan, Raleigh, Baltimore, New Mexico State Police, Arizona Dept. of Public Safety, Pittsburgh, Minneapolis, Orlando, Fort Lauderdale and the California Highway Patrol.
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VSA - Users
Insurance companies International groups Private investigation companies Casinos Moving Companies Armored Cash Transport Groups
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VSA – Technical Characteristics Digital technology of the most advanced fidelity in
recording Printer for record keeping Automatic internal power source 110/220 volts Selective on-board audio source to external line-in Wireless capacity for audio and video applications
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VSA - Service
Analysis and evaluation of the specifc situation. Preparation of questionnaires for each specific
subject. Preliminary interview with each subject. Detailed interrogation with each subject using the
VSA Mark-2000 unit. Second interrogation with the VSA Mark-2000 for
subjects of high interest. Report, observations, and suggestions after analysis
of results.
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VSA - Source Homeland Security Strategies and HSS Development Recognized world leader in the design, manufacturing and
implementation of the most advanced technology in specialized security, intelligence, counterintelligence, personal protection, and antiterrorism.
www.secintel.com www.bombjammer.com www.cellularintercept.com
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VSA-PREPARATION OF THE QUESTIONNAIRE
CONTROL QUESTIONS
QUESTIONS OF NO RELEVANCE
QUESTIONS OF RELEVANCE– S. K. Y.-
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CONTROL QUESTIONS Are questions to which we know what is the
truthful answer and are used to calibrate the base line level of stress of each subject being interrogated: “Is your name John Smith?”, “Are we in Miami?”, “Were you born in London?”, “Is your wife’s name Jane?”, etc.
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QUESTIONS OF NO RELEVANCE
The purpose of these questions is to create a psychological imbalance on a subject who is “prepared” on what to answer to expected questions: “In the last 24 hours, did you attend the hotel gym?”, “Were you at the 8th street McDonald’s this morning between 8:00 and 8:30AM?”, etc.
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Relevant Questions These are the questions of interest in the
investigation and we need to use the technique called “S.K.Y.” – S - K - Y– U - N - O– S - O - U– P - W– E– C– T
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VSA-APPLICATIONS IN THE PRESENCE
OF THE SUBJECT BY TELEPHONE
LINK BY E-MAIL WITH RECORDINGS WITH COVERT
AUDIO DEVICES
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Questions? Homeland Security
Strategies Thank you for your
interest in the 3rd Generation VSA G3