Expert witness services
Testimony That Holds Up.
20+ years of federal court experience. Opinions grounded in sound methodology, thoroughly documented, and prepared for cross-examination.
What Expert Witness Engagement Means
Digital evidence is only as strong as the examiner who can explain it. Stephen Holmes has testified in federal and state courts, provided written expert opinions, and prepared rebuttal reports across a wide range of criminal matters.
Every engagement begins with a thorough review of the evidence and a candid assessment of what the data supports. If the evidence doesn't support a conclusion, that assessment is documented — not shaped to fit a narrative.
Case types
Legal Investigations
Digital forensic examinations for criminal defense, family-law disputes, civil litigation, and appellate matters.
Business Investigations
Digital forensic examinations supporting internal investigations, employee misconduct inquiries, suspected data theft, policy violations, fraud-related matters, and litigation readiness.
Personal Investigations
Digital forensic examinations supporting family-law matters, suspected unauthorized access, online harassment, digital privacy concerns, and other sensitive personal disputes.
Computer Forensics
Forensic examination of computers, laptops, servers, and storage media to identify, preserve, recover, and analyze relevant digital evidence, including user activity, communications, documents, internet history, and deleted data.
Mobile Forensics
Forensic examination of smartphones, tablets, and other mobile devices to identify, preserve, extract, and analyze relevant digital evidence, including messages, call history, application data, photos, location artifacts, and device activity.
Rebuttal and Review
We review prior forensic examinations for methodological errors, unsupported conclusions, and chain-of-custody issues — and provides a written rebuttal opinion when warranted.
20+
Years in federal court
Federal & State
Court system experience
CFCE
Certified Forensic Computer Examiner
GCFE & GASF
GIAC Certified Forensic Examiner
How an engagement works
Initial consultation
A free confidential call to discuss the matter, the evidence at issue, and whether forensic examination is likely to be material to the case.
Evidence review & scope
Review of available materials — devices, images, reports, or prior examinations — to define the scope of analysis and identify what questions the evidence can answer.
Examination & documentation
Forensic examination using industry-standard tools and methodology. Every step is documented in a chain-of-custody-compliant workflow.
Written report
A clear, defensible written report stating findings, methodology, and opinions. Written to be understood by judges and juries, not just technical audiences.
Testimony & cross-examination
Available for deposition, hearing, or trial testimony. Opinions are prepared to withstand rigorous cross-examination.