California Lie Detector/Polygraph Expert Witnesses
California Public Contracts Expert Witness Listings
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What is a lie detector/polygraph expert witness?
A lie detector expert witness, also known as a polygraph expert witness, is a professional who provides expertise in the use, interpretation, and accuracy of polygraph tests in legal proceedings.
What is the role of a lie detector/polygraph expert witness?
A lie detector/polygraph expert witness provides expert opinion on the use and reliability of lie detector tests.
How much can a person make as a lie detector/polygraph expert witness?
Lie detector/polygraph expert witnesses can expect to earn anywhere from $200 to $400 or more per hour, determined by the requirements of the case.
What are the qualifications of a lie detector/polygraph expert witness?
Lie detector/polygraph expert witnesses should possess knowledge of polygraph procedures, testing methods, and the psychology of deception.
For a case, how is evidence gathered by a lie detector/polygraph expert witness?
A lie detector/polygraph expert witness gathers evidence by administering a test that measures physiological responses such as heart rate, blood pressure, and breathing patterns to determine if a person is lying or telling the truth.
In what type of cases might require opinions from a lie detector/polygraph expert witness?
Cases involving criminal investigations, employment disputes, and family law matters may require opinions from a lie detector/polygraph expert witness to determine the truthfulness of statements made by individuals involved in the case.