. Flashcards
these are direct questions having an extreme and specific relationship to the crime or matter under investigation and these direct or key questions are asked by the examiner in order to resolve a specific subject matter.
Relevant Question
these are relevant questions having an intense and specific relationship with the crime or problem being considered. Designed to test for direct involvement only and specifically designed to produce an emotional response of guilty subject
Strong Relevant or Primary or Crucial Question
These are questions concern in some secondary aspects of the crime or problem deals mostly on guilty knowledge and partial involvement.
Weak Relevant or Secondary Question
These are questions formulated without specific relationship to the case under investigation. They are intended to establish subject’s physiological norm and to lessen the excitement stage produced by relevant question. In these questions the examiner usually refer to dates, names of place. Subject’s position, etc.
Irrelevant question
This question is designed to produce a response in the innocent subject and serves as a basis for evaluating the subject’s perceptual set.
Control Question (Probable Lie)
is based on a known lie. It must concern about events that transpired within 3 to 5 years period before case under investigation occurred. Ex. “Before reaching the age of 20, have you ever stolen anything?”
Primary Control Question
is more specific in nature and is based on another experience or wrongdoing, which will enhance the opportunity for responsiveness. Its scope covers up to the present period. The question for responsiveness must not be related to the case under investigation
Secondary Control Question
This question is designed to probe whether the subject possesses information regarding the identity of the offender, or as to the location of the evidence or other secondary elements of the facts of the case under investigation.
Knowledge Question
This is designed to obtain the responses generally generated by the introduction of the first relevant question in the series. It reveals the subject’s norm plus stimulus and excitement level.
Sacrifice or DYAT Question
These are series of relevant and control questions in a planned order. The questions are so arranged in order to compare the subject’s responses between each type of questions.
GENERAL QUESTION TEST/GENERAL SERIES TEST
The examiner shows the subject seven (7) variously numbered cards. Face down. The cards are arranged in such a way the examiner will immediately know which card has been picked by the subject. The cards with numbers 15, 8, 5, 3, 4, 14, and 12 are used. The subject is instructed to select one card, look at it and memorize the number of the card selected and put it back to the group without showing it to the examiner or otherwise identify the number.
CARD OR NUMBER TEST (STIMULATION VERIFICATION TEST)
This test contains previously asked questions in GQT. With the number corresponding to the number of the question on the earlier test, the mixture would be.
SPOT RESPONDER TEST
The subject is instructed to refrain from giving any audible answer. The subject is told to listen to each test question and to answer only to himself, silently. Moreover he is to think of the truthful answer and give that truthful answer to himself, but silently.
SILENT ANSWER TEST
In instances where distortions occurred on the Test 1, Test 2 ,Test 3, the YES test should be administered before the Test 4. The test is conducted by instructing the subject to say “YES” to all questions to be asked, including those pertaining to the matter under investigation. The Control questions are however eliminated.
YES Test
If the respond on the previous test is doubtful, it becomes necessary to conduct additional test. This consist of a regarding fictitious incidents or a similar nature but one which appears to be real in so far as the subject is concerned. The purpose of this test is to compare the responses with those that appeared on the actual test record when question were asked about the matter under investigation.
Guilt Complex Test
The investigator will prepare seven (7) questions and one of them has a specific bearing on the matter under investigation. The specific question must refer to some details of the incident, which could have not been to the subject.
PEAK OF TENSION TEST
- the polygraph technique most commonly used for polygraph interrogation concerning a single issue, and it is used especially in criminal investigations.
ZONE COMPARISON TEST
improved version of BZCT.
The Utah Zone Comparison Technique (UZCT)
COLOR ZONES IDENTIFYING OF QUESTIONS
RED ZONE - Strong Relevant Question
GREEN ZONE - Control Question (Probable Lie)
BLACK ZONE - Symtomatic Questions only (Outside Issues)
YELLOW ZONE - Irrelevant Questions & Sacrifice Questions
process of writing standard and customized signs on the polygraph chart to denote the subject’s reactions and other circumstances that occur during the actual polygraph test.
CHART MARKING
short vertical lines (usually about 1/8 of an inch) placed below the descending stroke of the cardio tracing denoting precisely the beginning and at the end of the stimulus question.
Stimulus marks
complete record of the pneumograph, cardiograph, and galvanograph tracings from the moment the actual questioning of the subject starts until it ends
Polygram
developed and introduced uniform
Cleve Backster
no physiological evidence - no value
Average Tracing Segment
shows physiological evidence (sympathetic subdivision of ANS) - with value
Reaction Tracing Segment
shows physiological evidence (parasympathetic subdivision of ANS) - with value
Relief Tracing Segment
a segment within a tracing that departs from the average - lack in psychological origin (conditional)
Distortion tracing Segment
Starting the test
It indicates that the test begins. Wait for 15-20 seconds before asking the first question
X
When the first question is asked
to indicate the beginning and the ending of the question
/ (start) // (end)
-No sign if the subject fails to answer or when SAT Test in conducted.
-Signs are placed below or at the right side of the number of the question.
“+” for YES “–” for NO
Talking by the subject other than YES or NO
starts to talk and again where the subject stops.
Draw a line between the two to indicate the length of talking
T T
Talking instruction
cardio pattern when the subject is tactfully instructed regarding talking. Indication is made on the chart below the cardio pattern.
TI
Coughing
the pneumo tracing where the break is shown. It can also cause a sharp ring on the galvano and a break on cardio pattern
C
Clearing of Throat
is placed on the chart for clearing of throat and is frequently placed below the pneumo tracing, both galvano and cardio tracings may be affected depending on its intensity.
CT
Sigh
indicated inside the pneumo tracing exactly where it took place. It may be indicative of deception or mere denotes relief, because of the psychological implications involved, it must be distinguished from deep breath.
S
Sniff
placed below the pneumo tracing where the sniff was noted.
SN
Sneeze
placed just below the pneumo tracing at the point where sneeze occurred. Such occurrence will affect all three tracing to varying degrees.
SZ
Burp or Belch
indicated just below the pneumo tracing where burp occurs. Burping affects both pneumo and galvano tracing
B
placed on the chart if the subject laughs and should be placed below the break point in the pneumo tracing. This will also affect the cardio tracing.
L
Yawn
Y
Movements
M
Change of Voice
VC
Involuntary Movement
IM
Ending the test
XX
These should be written above the pneumo tracing near the beginning of the chart for identification.
- Subject’s name, rank or profession
- Date and time of examination
- Test or Chart number
- Initial of the Examiner
Conclusions That A Polygraph Examiner May Reach
- Subject is telling the truth
- Subject is not telling the truth
- The result is inconclusive
occurs when a truthful examinee
is reported as being deceptive.
False Positive
when a deceptive examinee is
reported as truthful.
False Negative
CAUSES OF POLYGRAPH ERRORS
- Failure of examiner to properly prepare the
examinee for the examination. - Misreading of the physiological data on the
polygraph charts. - Defective polygraph machine.
CAN A PERSON BE COMPELLED TO BE SUBJECTED TO A LIE DETECTOR TEST?
In as much as the test requires the subject to answer the question either by yes or no, it infers the use of intelligence and attention or other mental faculties which is self-incriminatory. Therefore, a person CANNOT be compelled to be subjected to the test.
Today, some polygraph examiners refer to be called
Forensic Psychophysiologist (FP)