When the Truth Counts. . . Count on Us.

Our Team

David E. Knefelkamp

scan0056David has been a certified forensic and clinical Polygraphist since 1983. He is a graduate of the University of Houston, TX polygraph program, the FBI Law Enforcement polygraph program, and numerous other nationally recognized programs. He is an active member of the American Polygraph Association, having been elected to two 2-year terms on the Board of Directors. He has served as Chair of the APA annual seminar, membership committee, and school accreditation committee.

David holds a BS degree from St. Cloud State University. He served as a law enforcement officer for 30 years with the Stillwater Police Department and the MN Bureau of Criminal Apprehension. Dave served the BCA as their polygraphist until his retirement in 1997.

Upon retirement, Dave implemented the polygraph program for the treatment and supervision of sex offenders for the Minnesota Department of Corrections.

Now in private practice, Dave continues to provide polygraph services to a variety of law enforcement agencies, sex offender programs, and attorneys throughout Minnesota.

Michael P. Smith

igr_9058_rMichael became a certified forensic and clinical polygraphist in 1998. He is a graduate of the Argenbright International Institute of Polygraph in Atlanta, GE. He has maintained a certificate of Advanced and Specialized Studies in polygraph. He is an active member of the American Polygraph Association.

Michael holds a BA degree from St. Cloud State University, majoring in Criminal Justice Studies. He began his career with the Mn Department of Corrections in 1982 and retired in 2014, after 32 years with the department.

During the last ten years of his career, Michael was with the Office of Special Investigations as the Assistant Director of Investigations. During this time, he managed all criminal investigations and internal affairs investigations in all ten of Minnesota’s prisons. As a sworn peace officer, Michael also managed the department’s Fugitive Apprehension Unit.

Now in private practice, Michael continues to provide polygraph services to a variety of law enforcement agencies, sex offender treatment programs, and attorneys throughout Minnesota.

FAQ

What is polygraph?

A polygraph will collect physiological data from at least three systems in the body.

What is a typical polygraph?

A typical polygraph examination will include a period referred to as a pre-test interview, a chart collection phase, and a test data analysis phase.

What is the best way to prepare for a polygraph examination?

A person should get an adequate amount of sleep before the examination. You should use all prescribed medication as directed by your doctor. You should not use alcohol or drugs within 24 hours of the examination.

How accurate is a polygraph examination?

A properly administered polygraph examination has been proven to be over 90% accurate for a single-issue examination. While most cases will be determined to be truthful or deceptive, occasionally an examination will be Inconclusive. This means that based on the physiological data, no opinion can be rendered as to the truth or deception.

Contact us

David E. Knefelkamp

PO BOX 151
Stillwater, MN 55082
651.439.3011
Email Me

Michael P. Smith

PO BOX 50875
Mendota, MN 55150
651.775.6344
Email Me

Office Locations

Suite 104
305 Greenley Street
Stillwater, MN  55082

Suite 206
1500 1st Avenue NE
Rochester MN  55904