With over 48 years of experience, Gus is a highly respected examiner in the field of Forensic Document Examination. Gus began his career with the United States Army Criminal Investigation Division (CID), before continuing his career with the United States Secret Service (USSS) and eventually incorporating his private practice in 1981.

He has rendered expert testimony in all Courts of the United States Armed Forces, State and Federal Courts throughout the United States, as well as several international jurisdictions. Furthermore, Gus has been retained as a Government Expert in the highly publicized cases listed on the right.


People vs. Edward Leary (N.Y.C. Subway Firebombing)
People vs. Abraham Hirschfeld
People vs. Chuck Jones (Marla Maples’ Publicist) (1994 and 1999)
People vs. Anthony D. Marshall and Francis X. Morrissey, Jr. (Brooke Astor)
People v. Christopher Rhodes (Ind. # 2005-103)

U.S. vs. Eddie Antar (Crazy Eddie)
U.S. vs. Don King (1985, 1995 and 1998)
U.S. vs. Giovanni Gambino
U.S. vs. Leona Helmsley
U.S. vs. Autumn Jackson (Bill Cosby)
U.S. vs. Imelda Marcos
U.S. vs. Bess Myerson
U.S. vs. Darryl Strawberry
U.S. vs. Lawrence Cusack (President Kennedy Papers)
U.S. vs. Osama Bin Laden (U.S. Embassy Bombing in Africa)
U.S. vs. Mokhtar Haouari and Abdelghani Meskini (Y2K Millennium Bomb Plot of LAX)
U.S. vs. Wesley Snipes
U.S. vs. Ivan Boesky
U.S. vs. GAF Corporation
U.S. vs. Boyd L. Jefferies
U.S. vs. Dennis B. Levine
U.S. vs. Michael Milken
Kenneth Starr, Office of Independent Counsel
(Whitewater Investigation)
Lawrence E. Walsh, Office of Independent Counsel
(Iran-Contra Affair)
U.S. vs. Thomas Clines
U.S. vs. Albert Hakim
U.S. vs. Lt. Col. Oliver North
U.S. vs. Admiral John Poindexter
U.S. vs. General Richard Secord
U.S. vs. Casper Weinberger

In addition to testifying in multiple international jurisdictions, Gus has also been retained in many high-profile international matters originating out of South America, Africa, Asia, Europe and the Middle East.

  • International testimony experience

  • Court Qualified in both State and Federal Courts in the United States

  • International travel experience


  • Evidence Handling Procedures
  • Handwriting, Hand Printing and Signature Examinations
  • Photography and Digital Imaging
  • Alterations, Obliterations and Erasures Examinations
  • Expert Witness and Legal Proceedings
  • Electronic Signature Analysis
  • Examination Procedures
  • Printing Processes Identification and Examination
  • Photocopiers/Facsimile Examinations
  • Mechanical Impression Examinations
  • Typewriter Examinations
  • Non-Destructive Ink Analysis
  • Non-Destructive Paper Analysis
  • Non- Destructive Indentation Analysis

Please contact us for a current CV or Fee Schedule