Services Offered
Management Information Investigators
(Undecover Agents), Drivers, Cashiers, Cleaners, General Workers.
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Polygraph Test / Polygraphing
Polygraph tests are one of the most important investigation tools available to a private investigator today. From Pre-Employment to Periodic and Specific polygraph tests, Polygraph tests provide accurate results, identify risks as well as assist in clearing innocent persons.
Pre-Employment Polygraph Test:
Let us help you screen staff and ensure they stay honest. Screening of applicants is of particular relevance in positions where honesty is important.
Applicants are tested on:
- Work history details
- Prior criminal activity and convictions
- Narcotic and Alcohol abuse
Periodic Polygraph Tests:
- Employees are tested periodically to establish on-going truthfulness and honesty and can assist in identifying risks.
Specific Polygraph Tests:
- Used to establish truthfulness regarding
- Theft
- Criminal Activity
- Assault
- Private Issues
- Event participation compliance – i.e. drug taking
How is a Polygraph Test Conducted?
It is important to understand what a polygraph examination entails.
A polygraph instrument will collect physiological data from at least three systems in the human body. Convoluted rubber tubes that are placed over the examinee's chest and abdominal area will record respiratory activity. Two small metal plates, attached to the fingers, will record sweat gland activity, and a blood pressure cuff, or similar device will record cardiovascular activity.
A typical polygraph test will include a period referred to as a pre-test, a chart collection phase and a test data analysis phase.
In the pre-test, the polygraph examiner will complete required paperwork and talk with the examinee about the test. During this period, the examiner will discuss the questions to be asked and familiarize the examinee with the testing procedure.
During the chart collection phase, the examiner will administer and collect a number of polygraph charts. Following this, the examiner will analyze the charts and render an opinion as to the truthfulness of the person taking the test.
The examiner, when appropriate, will offer the examinee an opportunity to explain physiological responses in relation to one or more questions asked during the polygraph test. It is important to note that a polygraph test does not include the analysis of physiology associated with the voice. Instruments that claim to record voice stress are not polygraphs and have not been shown to have scientific support.
CLICK HERE to view polygraph case studies >>
