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

The road back to trust can be a difficult one. We are not here to make it harder. While it is our job to find the truth, it is very important to us that each of our clients are treated fairly and with dignity and respect. 

Prior to her career as a polygraph examiner, Erica Hillyer provided therapeutic services to juveniles and adults struggling with sexual issues and addictions. She also specialized in completing psychosexual assessments. 

Training - Membership - Awards

Bachelor of Arts in Psychology from Oral Roberts University


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

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

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

Certified in Post Conviction Sex Offender Testing (PCSOT)

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

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