Whilst there is little doubt that polygraph is a reliable and accurate Detection Of Deception (DOD) technique, it does suffer from numerous disadvantages outside of the laboratory environment.
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Acronyms and Explanations

AM:                  Amplitude Modulation
ANS:                Autonomic Nervous System
APA:                American Polygraph Association
APAVSA:         American/African Polygraph and Voice Stress Association
CNS                  Central Nervous System
CVSA:              Computerised Voice Stress Analysis™
DOD:                Detection of Deception
DVSA:              Digital Voice Stress Analysis ©™ (Fully Digital- 32 bit)
FFT:                  Fast Fourier Transfer
FM:                   Frequency Modulation
FVAS:               Forensic Voice Analysis System©™
GSR:                Galvanic Skin Resistance
GVSA:              Global Voice Stress Analysis
LVA:                 Layered Voice Analysis
MMT:               Micro Muscle Tremor
PCASS:            Preliminary Credibility Screening System
PDD:                Psycho physiological Detection Deception
PNS:                 Peripheral Nervous System
PSE:                 Psychological Stress Evaluation©™
SAPAVSA:       South African Polygraph and Voice Stress Association
SCAN:               Scientific Contend Analysis (some refer to it as Statement Contend Analysis)
SVA:                 Statement Varsity Analysis
TARA:              Timed Antagonistic Response Alethiometer
VSA:                 Voice Stress Analysis©™


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