Forensic Document Examiner Los Angeles, CA


At Integrated Forensic Services, LLC, we pride ourselves on delivering meticulous forensic document examination and insightful consulting, grounded in professionalism and an impressive 40-plus year legacy of combined experience. Our seasoned experts, Sean A. Espley and Joseph G. Merydith, are the backbone of our operations, having carved a niche in providing top-tier services to legal practitioners, corporate entities, private detectives, and a broad spectrum of law enforcement agencies engaged in both civil and criminal matters.

Our Los Angeles branch is instrumental in extending these specialized services, with a remarkable record of over 120 expert testimonies across Federal and Superior Courts, including in-depth involvement in depositions and administrative hearings throughout California and Nevada.
Handwriting Analysis & Forensics 
Serving Los Angeles, CA

Certified Expertise Rooted in Rigorous Training

Situated within easy reach of Sacramento, CA, our specialists, Mr. Espley and Mr. Merydith, are celebrated alumni of the American Board of Forensic Document Examiners (ABFDE). Their credentials are a testament to our commitment to upholding stringent standards, ensuring unmatched proficiency, qualifications, and continual learning in the realm of forensic examination.

Their expertise is further enhanced by immersive training and experience in laboratories accredited by the American Society of Crime Laboratory Directors (ASCLD), punctuated by successful completion of numerous proficiency assessments conducted by independent entities.

Forensic Document Examination Services Serving Los Angeles

Forensic document examination is the scientific analysis of documents to determine authenticity, authorship, or alteration. Los Angeles County courts see a high volume of contested-document matters, from disputed wills and trust instruments in Probate Court to forged contract signatures in LA Superior Court and questioned records in the Central District of California. Whether a case originates in downtown Los Angeles, Pasadena, Long Beach, or Orange County, a certified forensic document consultant at Integrated Forensic Services, LLC delivers independent, objective analysis and courtroom-ready opinions.


Services available to Los Angeles-area clients include handwriting and hand printing identification on contracts, checks, medical records, and business documents; signature verification and forged signature detection on wills, deeds, and mortgage documents; questioned document examination covering alterations, obliterations, and sequence-of-entry analysis; computer-generated document examination; age, date, and sequence determination; litigation support, including case review and assistance preparing questions for opposing experts; and expert witness testimony in Federal and Superior Courts, depositions, and administrative hearings.

For a full description of examination types, visit the Forensic Document Examination Services page.

What Credentials Should a Forensic Document Examiner in Los Angeles Have?

ABFDE certification is the recognized standard for forensic document examiners. Both Sean A. Espley and Joseph G. Merydith hold ABFDE certification, have worked in ASCLD-accredited laboratories, and have been proficiency tested by independent third-party vendors. The American Academy of Forensic Sciences (AAFS) and the American Society of Questioned Document Examiners (ASQDE) recognize no other certifying board, making ABFDE credentials a meaningful benchmark when evaluating any examiner serving Los Angeles.


Mr. Espley brings over 27 years as a forensic document examiner with the California Department of Justice, having examined more than 2,000 cases, including the Zodiac, Scott Peterson, and Yosemite killings investigations. He served on the ABFDE Board of Directors and acted as a Certified Technical Assessor for ASCLD. Mr. Merydith has over 27 years of government and private experience, having examined more than 1,500 cases and served as a Senior Forensic Advisor for the U.S. Department of Justice ICITAP program. Together, they bring over 55 years of combined experience to every engagement. Learn more on the Meet the Examiners page.

Civil and Criminal Case Applications

Forensic document examination supports a wide range of legal matters. Civil cases often call for a handwriting expert to address disputed signatures on real estate deeds, business agreements, and loan documents, or elder financial abuse claims common in LA County probate proceedings. Criminal cases may involve questioned checks, fraudulent identity documents, altered records, or forged court filings. Integrated Forensic Services, LLC has provided more than 120 expert testimonies across Federal and Superior Courts, depositions, and administrative hearings throughout California and Nevada.

How the Examination Process Works

  1. Call (916) 847-8552 to describe your matter and discuss the documents at issue.
  2. Submit questioned documents and known exemplars following secure chain-of-custody procedures.
  3. Examiners conduct scientific analysis using established forensic protocols and state-of-the-art equipment.
  4. Receive a formal written opinion report that is court-admissible and clearly explains findings
  5. If needed, an examiner provides deposition or trial testimony in Los Angeles-area courts or elsewhere in California and Nevada.

Frequently Asked Questions

  • What Does a Forensic Document Examiner Do?

    A forensic document examiner analyzes documents for authenticity, authorship, or alterations, producing an objective scientific opinion usable in court.

  • How Do I Know If a Forensic Document Examiner Is Qualified?

    Look for ABFDE certification, the only credential recognized by AAFS and ASQDE. Both examiners at Integrated Forensic Services, LLC hold this certification.

  • Can a Forensic Document Examiner Testify in Los Angeles Courts?

    Yes. Examiners have testified in Federal and Superior Courts, depositions, and administrative hearings throughout California and Nevada, including LA Superior Court.

  • What Types of Documents Can Be Examined?

    Wills, deeds, contracts, checks, medical records, business records, immigration documents, and computer-generated forms. Contact Integrated Forensic Services, LLC to discuss your matter.

  • How Do I Request a Forensic Document Examination for a Los Angeles Case?

    Call (916) 847-8552 or use the contact form on the website to request a free consultation.

Reach Out for Insightful Forensic Consultation

Queries about our array of services, the detailed credentials of our forensic experts, or any general inquiries are wholeheartedly welcome. Engage with us at your convenience via (916) 847-8552, and allow us to navigate you through the complexities of forensic document examination with our unparalleled expertise.