Lesnevich & Detwiler

Lesnevich & Detwiler

Lesnevich & Detwiler Forensic Document and Handwriting Laboratory
7550 Woodbury Pike
Roaring Spring , PA 16673
Mobile: 814-932-9047
Office: 814-793-2377
Fax: 814-793-3790


Contact us Today! 814.793.2377 | 412.430.3887 | 215.800.0120 | E-mail: info@lesnevich.com | Website: www.lesnevich.com

With over 55 years of experience specializing in the examination and analysis of signatures, writings, and documents, Gus Lesnevich and Khody Detwiler (Lesnevich & Detwiler) own and operate one of the most sophisticated private forensic document laboratories in the United States; including the capabilities to perform all aspects of non-destructive forensic document and handwriting examinations. They are often retained (both nationally and internationally) by law firms, government agencies, insurance companies, banking institutions, fortune 500 corporations and other private entities to handle any issue involving the authenticity of documents, writings and signatures in both criminal and civil matters (i.e. wills and other testamentary documents, medical records, insurance policy forms, deeds, mortgages, banking transaction documents, contracts, anonymous/threatening letters and much more).

They are court qualified in state, federal and international jurisdictions; and have earned a stellar reputation for producing highly-effective court illustrations in support of our findings when providing expert witness testimony.

They are committed to bringing the highest level of expertise to all of their clients in every aspect of their case, from beginning to end. In addition to the services mentioned above, they also offer extensive litigation and investigative support in the form of confidential consultation regarding the Forensic Document Examination discipline as a whole; including assistance with evaluating and interpreting the credentials and opinions of other practitioners within their field. They pride themselves on providing their clients with the tools necessary to not only use their services, but to understand them as well. They practice on the belief that education is not only essential in any expert retention, it is the absolute cornerstone to a successful outcome!

Areas of Expertise

  • Arbitration & Mediation
  • Contracts
  • Data Communications
  • Demonstrative Evidence/Exhibits
  • Document Examination
  • Elder Abuse
  • Fraud Investigation
  • Gangs
  • Handwriting
  • Ink Dating
  • Insurance Fraud
  • Landlord/Tenant
  • Life Insurance
  • Medical Records
  • Mergers & Acquisitions
  • Mortgages
  • Private Investigators
  • Pulp & Paper Industry
  • Sexual Harassment/Discrimination
  • Technology
  • Trusts & Estates

Expert Background

Q: Please list your affiliations or memberships in any professional and/or industry organizations:
A: International Association for Identification (IAI) - https://www.theiai.org/
American Academy of Forensic Sciences (AAFS) - https://www.aafs.org/
Mid-Atlantic Association of Forensic Scientists (MAAFS) - http://www.maafs.org/
Northeastern Association of Forensic Scientists (NEAFS) - http://www.neafs.org/
Midwestern Association of Forensic Scientists, INC. (MAFS) - http://www.mafs.net/
ASTM International: Committee E30 - Forensic Science (ASTM) - https://www.astm.org/
American Society of Questioned Document Examiners (ASQDE) - http://www.asqde.org/


Available Upon Request