Half a dozen pediatric doctors and toxicology experts said on Thursday that jury members were misled by prosecutors who quoted unreliable and incorrectly proposed insulin tests during the process of Lucy Letby, a nurse who was convicted of killing seven babies in a British hospital.
The doctors made their claims in a new report that Mrs Letby’s lawyer has submitted to the British Criminal Cases Review Commission, which is responsible for investigating possible judicial miscarriages, hoping to be able to cancel a full profession of its 15 lifetime penalties.
Mrs Letby, who worked as a nurse in a neonatal unit in a hospital in Noord -Engand, was found guilty in 2023 guilty of the intentional harm of – and in seven cases, murder of babies by injecting them with air, to overdo them with milk, causing air in their hostaltrinal tracts or they with insulin.
The new report includes the six experts, who include a forensic toxicologist, a professor in forensic science and an endocrinologist who has written several peer reviewed Papers about medical test errors, The validity of the proof of insulin poisoning was used by the prosecution during the process.
“Our inescapable conclusion is that this proof significantly undermines the validity of the claims made about the insulin and C-peptide tests before the court,” they wrote in a summary of the report provided by her legal team to reporters.
Mrs Letby has always maintained her innocence. Since her two tests, serious questions have been asked about her guilt, also in one Article of 13,000 words New Yorker Last May. But efforts of her lawyers to reopen the case with a full appeal have been repeatedly denied.
The new report focuses on two babies – known as babies F and L – whose blood sugar levels fell to low levels, but they recovered later. Mrs Letby was convicted of trying to kill the two babies by adding insulin to their food, causing a condition called hypoglycaemia.
Tests suggested that the babies had high levels of insulin, but only a negligible amount of C-peptide, a substance that is detected when insulin is produced by the body. The prosecution argued that the insulin must therefore be externally managed.
In the new report, the experts present what they describe as “convincing new evidence from multiple sources” that serious problems with the test results that are used to show that Mrs. Letby has poisoned two of the babies with insulin.
They said that the test, called “De Roche -immunoassay”, was known that it resulted in “false high insulin results”. They also argued that there were other ways for babies to receive insulin, also through the placenta while they are in their mother’s womb.
The experts said that then evidence was presented to jury members about the levels of insulin found in the small babies, referred the persecution to the wrong data.
“Studies in adults and older children were quoted that are not relevant, and the limited suitable information was not referred,” they wrote.
They said that testing “did not meet acceptable forensic standards” and that in particular the results of the Roche test should not have been trusted without being confirmed by more precise laboratory tests.
The Royal Liverpool Hospital Laboratory where the tests were performed explicitly warns in its online guidelines that they are “Not suitable” For examining low blood sugar levels created by an insulin injection. “If exogenous administration of insulin is suspected as the cause of hypoglycaemia, then inquire the laboratory so that the sample can be referred externally for analysis,” says it. But both babies recovered, so their samples were never referred anywhere else.
The experts said that public prosecutors and the police had not considered other ways in which the babies became hypoglycemic in addition to cheat.
“There are alternative medical explanations that explain hypoglycaemia in both babies, such as line failure, sepsis and perinatal stress-induced hyperinsulinism,” they wrote. “These alternative possibilities were not taken into consideration.”
Questions about the accusations of insulin poisoning have been made public by doctors by doctors in the months since the trial. The 86 -page report on Thursday is an attempt by Mark McDonald, Mrs Letby’s lawyer, to present those questions to the committee in a formal manner.
“The conclusions of the report on Babies F and L clearly show that the case should go back to the Court of Appeal as a matter of urgency,” said Mr. McDonald in a statement.
He added: “Lucy Letby currently serves 15 entire conditions in prison, when overwhelming independent expert certificate indicates that no babies have been killed.”
In one Explanation to a public inquiry Last month, lawyers said some of the families of babies who died or have caused damage to the Countess of the Chester Hospital: “The families have no doubt about Letby’s feelings of guilt.”
Mr. McDonald also has a full investigation by Mrs Letby through a separate panel of experts led by the Criminal Cases Review Commission A full investigation by Mrs Letby, led by the renowned Canadian neonatologist Dr. Shoo Lee, who viewed their findings in February. That report concluded that “there was no medical evidence to support crime that caused death or injury in one of the 17 cases.”
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