Danny Seiler - Polygraph Examiner

I get asked the following questions all the time from people that are making initial inquiries about polygraph testing. These questions are very important to know an accurate answer to. The first question is about the accuracy of polygraph testing. 1.  HOW ACCURATE IS THE POLYGRAPH? According to the American Polygraph Association, over 250 studies have […]

Raymond Nelson author of an enlightening paper on the Scientific Bases for polygraph testing. Click on the below link to read.

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 […]

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 […]

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 […]

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 […]

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 […]

Workplace Thefts Workplace polygraph testing has declined since the passage of the American polygraph Protection Act.  The Employee Polygraph Protection Act of 1988 (EPPA) generally prevents employers from using lie detector tests, either for pre-employment screening or during the course of employment, with certain exemptions. Employers generally may not require or request any employee or […]

This post deals with an immigration case that is currently under litigation. I have omitted the names of the principles and some of the factual information in order to protect the identities of the parties. Please take no reference from this article that I am referring to any particular parties. This post is about a […]

The Immigration Case  Based on a true polygraph case   An ever increasing number of immigration cases are utilizing polygraph tests to determine the immigrant’s truthfulness about deportation issues.   This article is based on a resent polygraph examination.  I have not included and identifying information about the immigrant.  No one should infer or claim that […]