Register of Experts Directory

M. Patricia Fisher

M. Patricia Fisher MJ

Diplomate, Board of Forensic Document Examiners

Fisher Forensic Document Laboratory, Inc.

2010 Crow Canyon Place
Suite 100
San Ramon, CA 94583
Phone: (510) 987-8129 Alternate: (800) 987-8129 Email: Website:


State-of-the-art laboratory in San Ramon/nondestructive examinations/most document problems/signatures/handwriting/medical/business records/fabrications/alterations/digital imaging/reports/exhibits/consulting/testimony/presentations/complex and specialized document problems.



Formal Education

BA, Mills College, 1963; California Secondary Teaching Credential SF State University, 1965; MJ, Graduate School of Journalism, University of California, Berkeley, 1994.

Registration and Licenses

Diplomate, Board Forensic Document Examiners (accredited by the Forensic Specialties Accreditation Board), Certified Fraud Specialist, Association of Certified Fraud Specialists, California State Bar approved Single Provider for MCLE credit.

Previous/Current Position

Vice-President, Board of Forensic Document Examiners (2016-Present). Editor, Journal of Forensic Document Examination (2005-2018).


Signatures of persons with parkinsonism and hepatic encephalopathy as comparison standards, co-authored with Carl E. Anderson, M.D. selected as an opening paper for the International Graphonomics 9th Biennial Conference in Singapore, June 1999. "Latent Images: the first impression, Primary or Secondary," coauthored with Leonard P. Chen, PhD, presented for the International Association of Forensic Sciences 15th Triennial Meeting, UCLA, August 1999 and for the Association of Forensic Document Examiners Educational Symposium, Phoenix, November 1999.

Prof. Affiliations

Association of Forensic Document Examiners, International Graphonomics Society, Association of Certified Fraud Specialists.


20 publications. "Red Flags": Questioned Documents in Financial Elder Abuse Cases, PI Magazine, August 2014. Fisher, MP, Barabe, JG, Rantanen, W., "Rare 1972 Marilyn Monroe Oyama Photo Book - genuine or a fabrication?" Journal of Forensic Document Examination, Vol 18, 2007. Televised documentary - Analyzed the work of a document examiner for "The Most Dangerous Animal of All," the Zodiac killer", appeared on FX and Hulu, 2020.

Prior Expert

Testimony in Municipal, Superior and Federal Courts 275+ times; testimony in other legal proceedings (arbitrations, hearings, depositions) since 1976.