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The American Polygraph Association does not prescreen the biographies of its members.
Biography and Additional Professional Information
1983 graduate of the University of Houston, TX. Polygraph Program. Polygraph examiner for the MN. Bureau of Criminal Apprehension (BCA) until retirement in 1997. Polygraph Services Coordinator for the MN. Dept. of Corrections from 1997-2003. Elected to the APA BOD for 2 2 year terms. PCSOT certified. Have served as Chair of School AccreditationCommittee and on Membership Commitee.
Curently in private practice.
David E. Knefelkamp & Associates
P.O. Box 151Stillwater, MN 55082
Phone: 651-439-301145° 3' 16.3836" N, 92° 49' 32.916" W