• Forensic Document Examiner, Private Practice,
  Milwaukee, WI
  2001 - Present
• Forensic Document Examiner, Unit Head, Questioned Document Unit,
  WI State Crime Laboratory, Milwaukee.
  November 1988- December 2011
• Document Examiner, United States Secret Service, Forensic Services Division,
  Washington, D. C.
  September 1987-October 1988
• Document Analyst, Federal Bureau of Investigation,
  Washington, D.C.
  September 1985-September 1987
• Intern, United States Secret Service, Forensic Services Division,
  Washington, D.C.
  January 1985-June 1985

• Federal Bureau of Investigation - Quantico, VA
• Rochester Institute of Technology – Rochester, NY
• United States Secret Service Federal Law Enforcement Training Center – Glynnco, GA
• American Academy of Forensic Sciences
• American Society of Questioned Document Examiners
• Midwestern Association of Forensic Scientists

• "Thin-Layer Chromatography of Writing Inks-Quality Control Considerations”
  Journal of Forensic Sciences, 1996, 41(5): 874-877.
• "Striation Patterns in New and Used Ballpoint Pens"
  Journal of the American Society of Questioned Document Examiners,
  2003, Vol. 6, No.2, pp.67-71.
• “Indentation Examination Enhancement”
  Journal of the American Society of Questioned Document Examiners,
  2005, Vol. 8, No. 2, pp. 65-69.

• American Academy of Forensic Sciences
  - Questioned Document Section – Section Secretary 2006-2007, Section Chair 2008-2009, fellow
• American Society of Questioned Document Examiners – member
• Midwestern Association of Forensic Scientists – member
• American Society for Testing and Materials (ASTM) – Forensic Science Section member

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