§ Guide topic

Expert reports

2 practical guides on expert reports for UK litigators, in-house counsel and investigators. Read every page online or download the PDF, free and without registration.

Ref · E-D · 2026 · §TPCClass · ConfidentialJuris · England & WalesStatus · Active

A forensic finding is only as strong as the report that carries it. These guides set out how digital evidence is written up as an expert witness report under CPR Part 35, where the expert's duty to the court sits, and what makes a report hold together under challenge.

They cover instructions and scope, the statements of truth and compliance a Part 35 report must contain, methodology and reproducibility, exhibits and hash records, the range of opinion, joint statements with an opposing expert, and the criticisms most often raised in cross examination.

§ What these guides cover

  • What a CPR Part 35 expert witness report must contain
  • Writing up digital forensic methodology and findings
  • Exhibits, hash records and reproducibility
  • The expert's overriding duty to the court
  • Joint statements and cross examination

§ 2 guides on expert reports

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