21
Oct
Scientific Bases for Polygraph
Raymond Nelson author of an enlightening paper on the Scientific Bases for polygraph testing. Click on the below link to read.
26
Jan
National Polygraph Association 2018
On January 21 to 24th, I attended the National Polygraph Association’s annual seminar. The event was well attended this year in Las Vegas, NV at the Golden Nugget Hotel. There was a great Case Study presented called The Pillowcase Rapist. Christopher Hubbart tagged as the ‘Pillowcase Rapist’ was the most prolific serial rapist in the […]
04
Nov
Virginia Polygraph Training
On November 1st and 2nd, I attended the Virginia Polygraph Association’s annual two-day seminar. The training was great, informative and helpful in my polygraph profession. There were around 100 polygraph examiners in attendance and all came away with some useful information. The training was sponsored by the American Polygraph Association and as always they added […]
22
Jun
Vyvance Medication
A medication that may affect polygraph test data In the past, several people have asked me if the medication they have been prescribed will interfere with their polygraph test. I tell them that most medications generally do not have a great impact on polygraph testing. However, there are some medications that do. Lafayette Instrument Company […]
06
Mar
EPPA Exemptions for Employers
ELECTRONIC CODE OF FEDERAL REGULATIONS Title 29: Labor PART 801—APPLICATION OF THE EMPLOYEE POLYGRAPH PROTECTION ACT OF 1988 Subpart B—Exemptions §801.12 Exemption for employers conducting investigations of economic loss or injury. (a) Section 7(d) of the Act provides a limited exemption from the general prohibition on lie detector use in private employment settings for employers […]
04
Jan
Does Polygraph Really Work?
Polygraph, for the most part, does work reliably. There are many good scientific studies that indicate that polygraph testing is much higher than the probability of chance. These studies indicate that the polygraph is somewhere between 85 to 95% reliable. I have been doing polygraph tests for over 32 years and can only think of […]