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HOW THE POLYGRAPH TEST EVOLVED.      

There has always been a problem of detecting lies. Defense attorneys, prosecutors, and police investigators are all familiar with outward physical signs that a suspect is not telling the truth. They are both verbal and non-verbal in nature.

Eventually someone thought it might be possible to make a scientific determination of deception or truthfulness by obtaining recordings of non-observable physiological phenomena such as changes in blood pressure, pulse, respiration, and GSR activity (sweat gland activation). Specifically, the polygraph is looking for the emotion of fear regarding a particular question. The fear of being caught in a lie causes stress inside the body. The polygraph instrument records the body's involuntary responses to an examiner's questions in order to determine deceptive behavior.

POLYGRAPH TESTING CAN HELP YOUR CLIENT IN SEVERAL WAYS. 

1. Pre-trial Negotiations- If you can show that your client passed a polygraph test given by an examiner with exemplary credentials, the prosecutor might be willing to reduce the charge against your client.

2. Post-trial Sentencing- Passing a polygraph test can mean the difference between your client being sentenced to five years instead of ten. Is five years of your client's life worth the time and expense of a polygraph test? 

POLYGRAPH TESTING FOR BUSINESSES IS USED WIDELY TODAY.

BUT THERE IS LIABILITY IF THE 1988 POLYGRAPH ACT IS NOT FOLLOWED

There is a 16 point checklist which the employer must follow in order to adhere to federal law. Consult with your attorney about the Polygraph Act of 1988....we can furnish you a copy of this checklist. (There is less liability when...a profiling security interview is used... as an alternative to polygraph testing.) 

FAITHFULNESS POLYGRAPH TESTING BETWEEN COUPLES IS WIDELY USED. (see the American Polygraph Association, for its "code of ethics" see link.) American Polygraph Association

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