Lorenzo Mansutti — the plumber's defence evidence on sewage and unit infrastructure
Prosecution claim
The Crown's trial narrative did not treat the unit's plumbing, sewage and water-infrastructure failures as a live clinical-differential explanation for the cluster of unexpected collapses. Infrastructure failures were not a central feature of the Crown's case.
Counter-evidence
Lorenzo Mansutti, a plumber employed to work on the Countess of Chester neonatal unit's infrastructure, gave defence evidence at trial documenting specific plumbing and sewage issues during the indictment period. His testimony addressed sewage backflow, waste-water contamination of clinical spaces, and the specific infrastructure failings the Datix record also documented. The significance of his evidence is not that he himself attributed any specific collapse to infrastructure — he did not — but that contemporaneous physical infrastructure failures existed on the unit during the indictment period, providing a documented differential for infection-mediated collapse that the Crown's narrative did not engage.
The plumber was on the unit. He saw what he saw. The Crown did not call him. The defence called him. His evidence went in.
What the jury heard
Mansutti's defence evidence was heard. It was not a central feature of the Crown's closing speech, which focused on the prosecution's preferred narrative of direct harm rather than on infrastructure-mediated infection as a clinical differential.
What the Panel says
The Panel does not adjudicate between competing infrastructure-vs-direct-harm differentials on the Crown's evidence; it finds case-by-case that no diagnostic criteria for deliberate harm are met and that natural-cause and sub-optimal-care differentials remain live. Infrastructure-mediated infection is within the differential the Panel's case-by-case findings leave open.
What independent experts add
- Mansutti's evidence was not fabricated or speculative — it was testimony from a person who had been physically present on the unit performing the plumbing work.
- The Datix incident record documents specific sewage-related events during the indictment period.
- Sewage and waste-water contamination are plausible transmission vectors for neonatal enterovirus and parechovirus outbreaks.
- The Crown's choice not to engage Mansutti's evidence substantively in closing is one reason independent commentators read the Crown's case as narratively rather than forensically structured.
- The existence of contemporaneous infrastructure failure is documentary and not dependent on any expert opinion.
- Infrastructure-mediated infection differentials are consistent with several indicted cases in which the Panel finds sepsis / infection a live differential.