Integrity Polygraph LLC


Welcome to Integrity Polygraph LLC. We are glad you found us.

The road back to trust can be a difficult one and we want to help. While it is our job to help find the truth, we are not here to make it harder on you. It is very important to us that each of our clients is treated fairly–with dignity and respect.  Our polygraph testing process is designed to get you results. 

Prior to her career as a polygraph examiner, Erica Hillyer provided therapeutic services to juveniles and adults struggling with sexual issues and addictions.


Bachelor of Arts in Psychology from Oral Roberts University

Master of Arts in Forensic Psychology from the University of North Dakota

Training - Membership - Awards

Graduate of the National Polygraph Academy (accredited by the American Polygraph Association)
Associate Member of the American Polygraph Association
Member of the Minnesota Polygraph Association
Elected to the Board of Directors of the Minnesota Polygraph Association as the Public Relations Director

Certified in Post Conviction Sex Offender Testing (PCSOT)

Awarded the ‘Soaring Eagle’ award for graduating at the top of the class in her basic training program at National Polygraph Academy

While our office is located in Mankato, Minnesota, Erica is available to travel statewide–and occassionally nationwide.

If you would like to book an appointment Click here to go to our appointment page.

If you find yourself in the wrong spot, Click here.

Lie Detector Test or Polygraph Examination
Which is it?
Why don’t most professionals like to call the polygraph process a lie detector test?   click here to find out.
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