Microbiology expert witnesses
Listed microbiology expert witnesses address infection causation, laboratory results, antimicrobial treatment and infection-control questions. Their evidence is commonly record-led and may sit alongside acute, surgical or infectious-diseases evidence.

01
The evidence
What a microbiology expert witness is asked to determine
The core material often includes microbiology reports, cultures, prescribing records, observation charts and infection-control documentation. The opinion identifies what was known at each stage and avoids treating a later organism result as if it had been available earlier.
- Whether signs of infection or sepsis were recognised against the presentation documented at the time.
- Whether samples, cultures and susceptibility results were interpreted and acted upon appropriately.
- Whether antimicrobial selection, dose, route and review were addressed by the available evidence.
- Whether the records support an opinion on acquisition, transmission or infection-control practice.
- Where microbiology evidence ends and a treating specialty must address clinical management or outcome.
Practitioners are listed by discipline and can be narrowed by location across the four UK nations. The register publishes the listing; the instruction is agreed directly with the practitioner.
Related evidence
Where this specialist evidence fits
The appropriate route follows the clinical question. These related specialties may answer different parts of the same instruction.
Pathology
Laboratory evidence and the interpretation of tissue or specimens.
View specialty →02Epidemiology
Outbreak, surveillance and population evidence.
View specialty →03Clinical negligence
Clinical negligence evidence where infection management is in issue.
View specialty →Search the register for a microbiology expert witness suited to the question in issue.
See microbiology listingsReport routes
Reports prepared
A records review report can deal with the contemporaneous material where an examination is not required. A breach and causation report can separate the standard-of-care question from the clinical consequence alleged.
Where the instruction concerns present symptoms, function or future course, a condition and prognosis report may form a separate part of the evidence. The report pages set out the form requirements.
Microbiology expert witness evidence
A microbiology expert witness provides an opinion within the limits of the instruction, source material and discipline-specific expertise. The records and clinical question determine the scope of the evidence.
See the relevant NICE sepsis guidance alongside the case material.
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