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RDR / Evidence and expert work / Reports written for court

Court reports · digital evidence, Reading

Expert witness reports, Reading. The other side will test every line, so it is written that way.

A report is bought for one thing only: what it can withstand. Someone opposite is paid to take it apart, and anything written to keep the instructing party happy will not last the morning. Part 35 settles the ranking in advance — the duty runs to the court, ahead of client, solicitor and fee note — and criminal instructions run to Part 19 of the Criminal Procedure Rules 2025. Both begin the same way here: written method, exhibit history, the two declarations, and the accreditation position stated at the top rather than discovered by the other side. Solicitors and insurers across Berkshire get the same document. Figure fixed first, from £800 + VAT.

Reports written to CPR Part 35 Chain of custody logged as it happens Independent, and confidential

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The four things a court looks at.

The duty that outranks the clientUnder Part 35 the expert is there for the court, and only on matters truly inside their expertise. The duty outranks whatever the instructing side was hoping to read. It opens the report, and what follows is measured against it.
Two declarations, signedFacts inside the expert's own knowledge are separated from the rest and confirmed as true. The report states that the opinions are honestly held and complete, and it confirms that both Part 35 and PD35 have been complied with.
The method, step by stepReceipt, imaging, hash values, examination, and the whereabouts of each exhibit at every stage — set down tightly enough for the examiner opposite to run it through again.
What is declared against usAn expert has to disclose anything touching their credibility under the criminal rules, and CPS guidance counts a missing accreditation among those things. Ours is in the opening pages, not a footnote.

Five reports, and which one your matter needs.

Not here? Tell us what it is doing →
The report typeWhere it appliesIts contents
A findings report on its ownEarly advice, HR decisions, board-level questionsWhat was there, how that was established, and what it amounts to — in plain words
A report on an insured lossWhere cause, extent or liability are in disputeThe findings, the exhibits, and how the loss came about
An expert report to CPR Part 35Civil claims within England and WalesThe duty at the head; instructions in substance; the method entire; both signed statements, truth and compliance
An expert report to CrimPR Part 19Cases bound for a criminal courtThe criminal shape: qualifications, the material a court needs to weigh reliability, and credibility declared
One jointly instructed expertWhere both sides instruct one examiner togetherOne report, issued to each side at the same moment, with the duty running past both of them to the court
Getting it to the lab: the lab takes parcels by tracked, insured post, and the return leg is at our expense. Unsure how to pack it? Ring before the box is sealed and an engineer will tell you what to send and what to leave out. The rest of the detail sits on the packing and postage page.

What we do, in order.

How other jobs ended →
01

Say what has happened, in confidence — the figure follows in writing Free

The scoping call costs nothing, and nothing chargeable starts until you have a price in writing. What the call fixes is the ground it covers: the events, the machines and accounts in play, and precisely what the evidence must establish. Forensic instructions start at £800 + VAT, and the scope decides where yours lands.

The call stays confidentialA fixed price, in writingThe question it has to settle
02

Your instructions, in substance

Our own summary of the instruction letter goes into the report, as CPR 35.10 requires, and no privilege attaches to it. Alongside it goes whatever bears on our credibility, beginning with the obvious: an independent lab that holds no accreditation. Far better read on the opening page than extracted from a witness under cross-examination.

Instructions, in substanceLimits stated at the front
03

Written for an adversarial reader

Every step is taken, and recorded, on the assumption that an expert opposite is looking for the weak point. That is what they are instructed to do. Nothing in the conclusions bends towards the party paying for them.

The duty runs to the courtFindings that hold under testing
04

Built to the rules of the right forum

Format follows forum. Civil instructions are written to CPR Part 35 with PD35; criminal instructions to Part 19 of the Criminal Procedure Rules 2025, the set that revoked the 2020 Rules in October of that year. The working parts do not vary: a method written down, the exhibits themselves, an unbroken record of custody and dates, and the declarations. Conclusions sit at the front; technical detail goes into an annex.

Written to CPR 35, or CrimPR 19Plain English from start to finish
05

The bundle, hashes and handover log

Hand the other side a finding they cannot test and you have handed them an argument. So it all goes in the bundle: exhibit numbers, the image each conclusion came off, dated handovers, the hashes, and the working notes typed as the job ran. The examiner on the other side can run the whole thing again and reach the same answer.

Every finding tied to an exhibitHash values kept, every move loggedRepeatable, step for step

Four things every instruction is told

  • The overriding duty decides it — when the court needs one thing and the client wants another, the court wins. An expert who has not taken that in has lost the report before anyone opens it.
  • Criminal work wants the reliability material — qualifications, experience and method have to be laid out before any bench can weigh what an opinion is worth.
  • Joint instructions change the arithmetic — one examiner, two instructing parties, nobody to keep sweet. We take them, and we say so at the outset.
  • Clarity earns as much as rigour — where a judge has to decode the thing, the work underneath it goes to waste.

A question worth asking any expert on your shortlist: Part 19 obliges an expert to disclose whatever a court might reasonably regard as detracting from their credibility, and CPS guidance treats an accreditation not held as falling squarely inside that. Silence turns it into the client's problem. Ours is on the opening page of every report issued from this room, with the method it rests on set out below it.

How one of these actually went.

RG · RDG-2026-1684ON FILE ✓

A Part 35 report on a folder two firms shared

Two firms shared one folder, and the accounts inside it existed in two versions that would not reconcile. Forensic images of both machines showed where each edit had been made, and the sequence of those edits answered the question. The dispute closed inside the month.

Wound upafter the exchangeCPR Part 35 followed

What helps, and what makes it worse.

First things to do

  • Say early if it may reach a court — it changes the work
  • Send the instruction letter as soon as it is drafted
  • Forward anything produced by the expert on the other side
  • Allow weeks rather than days — pressure does not shorten the work

What makes it worse

  • Pushing for a conclusion the evidence will not carry
  • Editing our text — argue with the reasoning instead
  • Expecting a Part 35 report at short notice
  • Ringing round until an expert agrees with you first — it always shows

What people ask before they send it.

What is the difference between a court report and a findings report?

A findings report settles what was on the machine and how that was established. A court report carries both, then adds: the duty the expert owes the court; your instructions in substance; method and exhibit history from receipt to return; the two signed statements; and anything the other side may want to raise about the expert.

Whose interest does the expert serve?

The court. Payment does not enter into it. It ranks above any obligation to whoever gives the instructions, and that ranking is what makes the document worth putting before a judge.

Will you take a single joint instruction?

Yes. One report, one set of conclusions, and both parties receive it together. Neither side sees a draft in advance, and neither side gets to move the wording.

Without accreditation, is the report weaker?

Declaring it is what the rules require, so it is declared at the top rather than in a footnote. Weight, in a court, comes off method, so method is where the effort goes. Reports come unstuck when somebody has claimed more than the evidence carried, not for want of a certificate.

Tell us the question the court is asking.

A report is only as useful as the instruction behind it, so the first call is about what needs proving and by when. Looking is free, the fee is fixed in writing, and the findings go to whoever instructed us and to no one else.

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