901-289-9933 fdes@bellsouth.net



 Business Information

Address:  3301 Carnegie Ln. Matthews, NC 28105
E-mail address: Charlotte@fde-sperry.com
Phone: (704)-860-7992    
Website:  www.fde-sperry.com

Position and Responsibilities

Forensic Document Examiner:  Responsibilities include the examination and comparison of known and questioned handwriting, hand printing, and machine produced documents for the purpose of identifying or eliminating an individual or machine as the source of the questioned material. Additional examinations conducted involve altered, obliterated, dated, erased, charred, water soaked, and indented documents.  Experienced in digital image acquisition and processing.  When requested, written reports of findings are prepared and testimony with demonstrative exhibits are provided at judicial or non-judicial proceedings.


  1. Completed a two year structured (in-residence) training course in the Examination of Questioned Documents at The Texas Department of Public Safety Crime Laboratory, Austin, TX.
  2. Completed Federal Bureau of Investigation Fundamentals of  Document Examination Course, Quantico,  VA.
  3. Completed Forensic Internship, Alabama Dept. of Forensic Sciences, Birmingham, AL
  4. Forensic Internship, US Postal Inspection Service Forensic Laboratory Services, Memphis, TN
  5. Completed ASCLD Leadership Academy

Continuing Education received on an annual basis through attendance and participation at numerous conferences, training seminars and workshops of recognized forensic organizations such as:

  1. American Society of Questioned Document Examiners
  2. American Board of Forensic Document Examiners (ABFDE)

Participated in and Received Training at:

  1. Integrated Paper Services, Appleton, WI
  2. Federal Bureau of Investigation Laboratory, Washington, D. C.
  3. Canon Photocopy and Facsimile Workshop, Atlanta, GA

Engaged in ongoing research and study in the field of Forensic Document Examination, presenting results at professional meetings.   Lectured on forensic document examination subject matter to paralegals, investigators and attorneys.

Continuous Professional Experience

Manager, Information Security, USPS CISO  2019-present

Laboratory Unit Manager, Forensic Laboratory Services,  Federal Laboratory, 2011-2019

ASCLD/LAB-International Technical Assessor, 2014-present

Forensic Document Examiner, Applied Forensics, 2010-2016

Forensic Document Examiner, private practice, 2006-2010

Forensic Computer Analyst, U.S. Postal Inspection Service, 2006-2011

Forensic Document Examiner, U.S. Postal Inspection Service, 2003-2006

Forensic Document Examiner, Texas Department of Public Safety, 1998-2003


Masters of Science in Forensic Science, University of Alabama at Birmingham

Bachelor of Science, N. C. State University

Court Testimony and Quality Assurance

Qualified and testified as an expert witness in the scientific field of Forensic Document Examination and Digital Evidence, in both State and Federal courts.

Technical reviews of examinations periodically reviewed for accuracy.  Third party proficiency testing is taken on an annual basis.

Professional Certifications

Certified by examination through the American Board of Forensic Document Examiners (D-ABFDE) and awarded diplomate status as a certified Forensic Document Examiner.  Re-certification maintained through continuing education credits.


“Metadata-Potential Support for Forensic Document Examiner Findings”, co-authored by Joseph Parker.  Presented at the 2016 Annual meeting of the American Society of Questioned Document Examiners, August, 2016

“Effects of Latent Print Processing on Evidence Prior to Digital Evidence Examinations”, co-authored with Angela Pratt and Anna Frindley.  Presented at the American Academy of Forensic Sciences annual meeting, Orlando; February 2015

“Chemical Toners: In Theory and Practice”, Poster Presentation at the American Society of Questioned Document Examiners meeting, Boulder, CO; August 2007

“A New Check Security Feature:  Thermochromic Ink”, Journal of the American Society of Questioned Document Examiners.  Vol. 6, No. 1; June 2003

“A New Check Security Feature:  Thermochromic Ink”.  Presented American Society of Questioned Document Examiners meeting, San Diego, CA; August 2002

“Updating Document Examination:  The Inclusion of Computer Disk Analysis”. Presented at the American Society of Questioned Document Examiners meeting, Des Moines, IA; August 2001

“Computer Evidence Analysis:  An Emerging Field in Forensic Science”, American Academy of Forensic Sciences, Young Forensic Scientist Forum Newsletter; January 2000

“Comparison of Laser and Alternate Light Sources in the Detection of Biological Fluids and Household Stains (Abstract)”; co-authored with Warren Stewart; Proceedings of the American Academy of Forensic Sciences 4:27, 1998.  Presented at the 1998 American Academy of Forensic Sciences Meeting, San Francisco, CA; February 1998

Professional Associations

 American Society of Questioned Document Examiners, Past Treasurer and member

American Academy of Forensic Sciences, Member

ASTM International, Member

American Society of Crime Lab Directors, Member