Case studies / public record
Technical evidence under actual scrutiny
Public decisions show how source records, metadata, databases, competing explanations, reports, and testimony function when the outcome matters.

Read the public record, technical assignment, evidentiary dispute, and full procedural outcome.
These case studies identify the public source, GDF's stated role, the technical issue, and the later procedural history. They do not imply that another matter will produce the same result. Confidential work is not repackaged into vague success stories.
Expert credibility is built before testimony
Preservation, method selection, validation, workpapers, contrary testing, and calibrated conclusions determine whether testimony can be defended. The courtroom is the last stage of that work, not the first.
Browse public case studies
Public decisions with GDF's stated role, the disputed evidence, and the later procedural history.
COMLAB v. Kal Tire: disputed email, metadata, and testimony
How native email, metadata, competing technical explanations, and expert testimony were tested in a Southern District of New York sanctions proceeding.
Read the public case02 / Database and biometric evidenceRogers v. BNSF: turning gate records into trial evidence
A public-record case study involving biometric gate data, database analysis, computer forensics, trial proof, post-trial rulings, and settlement.
Read the public caseDiscuss expert witness support
Tell us what is disputed, which devices or systems may hold the answer, and the next deadline. Counsel retains all legal decisions.