Private Investigations and Personal Security/will polygraph work on these questions


Are the following questions amenable to study via polygraph (if not how would the questions be rephrased to be useful on polygraph):

1) Is XXXX's chronic low back pain back (had prior to fall) to the way it was before XXXXX fell off the ladder at work in (year date)?

2) Is XXXXX's chronic radicular left lower extremity pain back to the way it was before XXXXX fell off the ladder at work in (year date)?

3) Is XXXXX's radicular right lower extremity pain that occurred after the fall at work in (year date) still there?


All of the questions you posit are appropriate for use by a polygraph examiner.  Remember there are control questions that will measure true answers to questions answered truthfully and calmly.  A subject's breathing, heart rate, skin conductance, etc. is measured against those control questions and then compared to questions that are inherent to the investigation.  


Jeffrey Hauck, JD, CPO, CII
Licensed Private Detective  

Private Investigations and Personal Security

All Answers

Answers by Expert:

Ask Experts


Jeffrey Hauck


I would welcome the opportunity to answer questions about the business operations, duties, and ethics of the modern professional private detective/private investigator.


Criminologist. Professor of Criminal Justice. Licensed Private Detective with expansive clientele base encompassing hundreds of cases. Donates resources and time to the Children's Rescue Network in Orlando, FL.

Associate of Science; Bachelor of Arts; Master of Science, Doctor of Jurisprudence Degree.

©2017 All rights reserved.