The polygraph is NOT a lie detector! It is a scientific diagnostic instrument, comprised of 3 recording components:
These instruments have been mechanically and electronically modernized over the years. They simultaneously record the physiological changes that take place with the respiration cycle, cardiovascular cycle and sweat glands.
There are 3 phases of a polygraph test:
Pre-Test:
This is the foundation of the exam.
Meet examinee, case overview and build rapport.
Sign pre-test consent form, discuss rights.
Do medical suitability, discussion of upbringing and explain how the polygraph works.
Discuss the relevant issue at hand and all questions that will be asked. (No surprise questions)
Do an Acquaintance (practice) test.
In-Test:
Run numerous tests. About 5 mins per test.
Ask the reviewed questions in mixed orders.
Components record continuously throughout chart.
Various question techniques can be asked
Post -Test:
Charts are numerically scored.
Results given to the examinee.
Discussion of the results.
Further interrogation if needed. Statements written.
Post-test consent form.
- Pneumograph - measures chest activity and upper body movement
- Cardiograph - measures heart rate and pulse
- Galvanograph (GSR) - Measures sweat gland activity
These instruments have been mechanically and electronically modernized over the years. They simultaneously record the physiological changes that take place with the respiration cycle, cardiovascular cycle and sweat glands.
There are 3 phases of a polygraph test:
Pre-Test:
This is the foundation of the exam.
Meet examinee, case overview and build rapport.
Sign pre-test consent form, discuss rights.
Do medical suitability, discussion of upbringing and explain how the polygraph works.
Discuss the relevant issue at hand and all questions that will be asked. (No surprise questions)
Do an Acquaintance (practice) test.
In-Test:
Run numerous tests. About 5 mins per test.
Ask the reviewed questions in mixed orders.
Components record continuously throughout chart.
Various question techniques can be asked
Post -Test:
Charts are numerically scored.
Results given to the examinee.
Discussion of the results.
Further interrogation if needed. Statements written.
Post-test consent form.
The truth shall set you free
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