The expert's first dutyPart 35 casts the expert as a help to the court, speaking only where they hold real competence, and that obligation beats whatever the instructing party hoped to be told. It goes at the top of the report, and everything that follows is measured against it.
Truth and complianceThe report separates out the facts the expert knows at first hand and holds to be true, records that the opinions given are genuinely held with nothing kept back, and confirms that it complies with Part 35 and the practice direction sitting under it.
How it was done, and to whatArrival, imaging, the hash values, the examination, and the exhibit's whereabouts at each stage — referenced tightly enough that an examiner on the other side could repeat the lot.
Our own weak pointsThe criminal rules have since 2019 required an expert to declare anything touching their credibility, and an accreditation not held is named outright. Ours sits in the first few pages, a long way from the footnotes.