Expert Witness & Litigation Support

Forensic evidence.
Built for the
courtroom.

Expert reports, depositions, trial testimony and rebuttal of opposing expert findings — engineered to survive cross-examination. Plain-language summary for the trier of fact; technical appendix for the opposing expert.

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What we deliver

Seven services for the
litigation lifecycle.

From the first affidavit to the last cross-examination. Every step is documented and reproducible.

01
Expert Reports & Affidavits

Methodology, findings, exhibits and reproducibility appendix. Structured for Daubert and Frye scrutiny. Plain-language summary plus technical appendix for opposing experts.

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02
Deposition & Trial Testimony

Direct and cross examination. Prep sessions with retaining counsel. Hourly and per-diem rates available, scoped at engagement.

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03
Rebuttal & Opposing Review

Independent review of opposing-side expert reports. We identify methodology gaps, tool misuse and conclusion overreach — and produce a rebuttal that withstands cross.

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04
Litigation Consulting

Non-testifying consultation for trial strategy, technical theory development and witness preparation. Hourly engagement, work product protected by privilege.

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05
Trial Exhibit Preparation

Timelines, maps, demonstratives and animated artifact reconstructions. Court-admissible visuals that translate forensic complexity into jury-comprehensible evidence.

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06
CLE & Legal Training

Continuing Legal Education sessions for law firms — digital evidence handling, eDiscovery, mobile forensics overview. CLE credit-eligible in most jurisdictions.

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07
Voir Dire & Trial Prep Support

Voir dire preparation, prep sessions with counsel and case-specific authority memoranda. Bundled with engagement at no additional charge.

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Why Data Rescue Labs

Built for the courtroom.

Most digital forensic firms can do the work. Few build every report assuming it will be cross-examined. We do — because that is the standard a digital evidence report has to meet to be useful in court.

Methodology, tool validation and reproducibility are designed in from intake — not bolted on after a challenge. Plain-language summary for the trier of fact; technical appendix for the opposing expert.

Open a case →
Judge's gavel on a wooden bench — built for the courtroom
Litigation FAQ

Expert witness, FAQ.

What lawyers ask before retaining us as forensic experts in Canada and the US.

What does "court-qualified" mean for a digital forensic expert?

A judge has formally recognized the witness as an expert entitled to give opinion evidence under R. v. Mohan (Canada) or Daubert v. Merrell Dow (US). The court evaluates the expert's credentials, methodology and the necessity of expert opinion for the trier of fact.

CV available on request through counsel.

How is an expert witness retained?

Through counsel. Standard flow: conflict check, engagement letter (signed by counsel, sometimes co-signed by client), CV exchange, retainer deposit. Once retained, we work under your direction — all communications privileged, all work product produced to counsel only.

For pre-engagement consultations ("is this matter worth taking on?"), we offer a one-hour scoped consult under privilege at no cost.

What's the difference between a fact witness and an expert witness?

Fact witness: testifies to what they personally observed ("I saw the defendant log in at 11:42 pm"). Expert witness: offers opinion based on specialized knowledge applied to evidence ("the login at 11:42 pm matches the attack pattern based on these five technical indicators").

Fact witnesses describe observations; experts interpret them. The line matters because expert opinions require qualification under Mohan / Daubert; fact testimony does not.

Can your experts testify in US courts?

Yes. We handle US engagements where cross-border qualification is required.

Same examiner team handles both Canadian and US trial dates where the matter is parallel-tracked.

What is a Daubert / Mohan challenge?

A pre-trial motion by opposing counsel to exclude the expert's testimony, usually attacking methodology, qualifications, or whether the opinion is necessary (vs. within the trier's ordinary understanding).

Surviving the challenge requires: a peer-reviewable methodology, a known error rate, general acceptance in the field and an examiner whose CV holds up. Our reports are designed for this scrutiny from day one.

How much does retaining an expert witness cost?

Three components.

Examination and report: hourly rate × hours, scoped at engagement and budgetable up front. Deposition / examination for discovery: half-day or full-day rate, plus prep time. Trial testimony: half-day or full-day rate plus prep and travel. We provide a budgetable scope at engagement and bill monthly with detailed time records.

Pre-engagement consult is free.

Can you write a rebuttal report against another expert's findings?

Yes. We review the opposing expert's report for methodology gaps, factual errors, unsupported assumptions and procedural deficiencies, then write a focused rebuttal identifying each issue with citations.

Rebuttal work is a frequent retention pattern — opposing counsel's expert produces a flawed report, we surgically pick it apart at deposition or trial. Many cases settle once the rebuttal lands.