Best Private Investigators in Chino, CA

The polygraph procedure and the instruments accuracy is dependent on several factors. 1st and foremost is the training of the polygraph examiner. To become a polygraph examiner enrollment in a certified polygraph school is required. Certification of schools is conducted by the American Polygraph Association. 2nd an examiner has to conduct an internship verifying that he can conduct polygraph examinations professionally as per instruction of the school(s) attended and American Polygraph Association guidelines. This internship is served under a experienced examiner that is able to provide guidance and mentoring to the intern during this continuing education internship program. 3rd an examiner that conducts himself and his business in a professional manner continues his education in pertinent areas of education in polygraph testing. There are states that require licensing for polygraph examiners. The state of California had a licensing law requirement prior to the passage of the Employee Polygraph Protection Act of 1988. After the passage of the EPPA this examiner was licensed in the state of California. 4th the polygraph procedure's accuracy can be affected by the subject, by subject countermeasures and various other subject factors. These important issues are addressed at length by the examiner during the pre test interview. Answer: In scientific studies the polygraph procedure has been deemed to be 95-98 % accurate.

A polygraph test consists of 4 relevant questions. Relevant questions are the important questions that a subject must be truthful to. A testing procedure has 10 questions per chart and a complete test consists of 3 charts. In issues where there are several relevant issues 2 examinations may be required. The testing procedures are scientifically structured. Any modification of the procedure can have un productive effects.

The scientific process of Lie Detection utilizes instrument(s) that record physiological reactions to questioning that is pertinent to the case facts that are being Investigated. The instrument(s) record at least breathing, blood pressure and sweat gland activity. (with the computerized polygraph instrument there are various other recording modules that can or may be recorded) The examiner will give you more information about how the components attached to your body work, how the instrument works and why your body responds to relevant questioning.

No. Scheduling with a polygraph examiner is required at least 24 hours in advance. We may require that you verify your scheduled appointment once the examination information is gathered and a test has been scheduled.

Our agency uses either the Lafayette Analog Polygraph instrument or the Stoelting CPS II Computer Polygraph Instrument. Both systems of polygraph instrument are accurate to 95-98%.