Letby is serving 15 whole-life jail phrases for murdering seven infants and making an attempt to homicide seven others between June 2015 and June 2016.

The now 34-year-old, initially from Hereford, made two makes an attempt to kill one among her victims.

Mr McDonald informed a information convention in London on Monday that Dr Evans had altered his view about how infants had died on the unit.

He stated: “Remarkably, Dr Evans has now modified his thoughts on the reason for dying of three of the infants: Child C, Child I and Child P.

The barrister added: “Dr Evans had stated to the jury that Lucy Letby had injected air down a nasal gastric tube and this had led to the dying of the three infants.

“This was repeated to the Court docket of Enchantment, who could have been misled after they dominated on the appliance for go away in opposition to the convictions.”

He stated Dr Evans had “revised his opinion in relation to Child C” and had written a brand new report which he had given to police months in the past.

However, he stated “regardless of quite a few requests” the prosecution had “but to present this report back to the defence”.

“The defence will argue that Dr Evans isn’t a dependable knowledgeable, and all of the convictions will not be secure,” Mr McDonald stated.