About Us

Our Mission

Our mission is to provide the best evidence-based credibility assessment training available worldwide. A comprehensive learning program illuminated by the lifetime contributions of the “Grand Master” Cleve Backster. 

“We do not learn from experience…we learn from reflecting on experience” – John Dewey

School Objectives

  1. At the Backster School of Lie Detection, we ensure each student is capable and confident in their ability to conduct a valid polygraph examination.
  2. We prepare each student to be able to effectively conduct a legal and ethical interview and properly collect and document admissions.
  3. We nurture student motivation to seek and incorporate continuing education into their profession as a polygraph examiner.

Background and Experience

The Backster School of Lie Detection was founded in 1959 by world-renowned polygraph examiner and researcher, Cleve Backster. Cleve’s contributions to polygraph were immense, and his legacy lives on today.

In 2017, Limestone Technologies acquired the Backster School of Lie Detection to continue the work of Cleve Backster in polygraph education. Our combined staff of instructors have over one hundred years of polygraph experience and have conducted thousands of polygraph examinations. We have an established instructional team uniquely serving in a Curriculum Provider Board capacity that meets yearly to discuss and refine the most sophisticated instructional methods for course delivery to our students. We are experienced in conducting polygraph courses at our home offices in Kingston, Ontario, as well as international locations around the world.

Training Recognition

Our professional courses meet or exceed the standards of the American Polygraph Association (APA), the Canadian Association of Police Polygraphists (CAPP), the American Association of Police Polygraphists (AAPP), and the American Society for Testing Materials (ASTM).

Why Choose the Backster School of Lie Detection?


The Backster School of Lie Detection is the longest standing polygraph school in the world. With over 60 years of rich history behind us, an education with Backster’s is recognized as credible and reliable.

International Status

The Backster School of Lie Detection is the school of choice for numerous countries, for both private and law enforcement training.

Optimal Student/Teacher Ratios

The Backster School of Lie Detection is dedicated to optimal student/teacher ratios to ensure that every student receives adequate attention from instructors and receives effective examination practice and training.


While the Backster School of Lie Detection primarily teaches on Limestone polygraph instrumentation and software, our instructors are fully equipped to teach on all polygraph instruments, so you graduate feeling comfortable using your instrument of choice.  

Qualified Instructors

All Backster instructors have significant practical experience, formal education, and professional teaching skills to help students understand the array of academic material required for course understanding.

Here for you

Phone: 613.507.4660
Fax: 613.634.4098

Backster School of Lie Detection

Limestone Technologies Inc. LimestoneTech.com

Where to find us

2263 Princess St.
Kingston, ON, Canada
K7M 3G1

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