LUCY LETBY CASE: NEW QUESTIONS OVER POLICE INTERVIEWS, SWIPE-CARD DATA AND DR. RAVI JAYARAM

MANCHESTER, ENGLAND — Fresh scrutiny is being directed at the evidence used against convicted former neonatal nurse Lucy Letby, after documents and comments highlighted questions surrounding police interviews, witness testimony and hospital door-swipe records.

Former Cabinet minister Sir David Davis has become one of the most prominent public figures calling for further examination of the case. He has questioned whether investigators handled evidence appropriately and has specifically raised concerns about testimony given by consultant neonatologist Dr. Ravi Jayaram.

But claims that police and Jayaram “colluded” to manufacture a conviction have not been established as fact. That distinction is crucial.

THE SWIPE-CARD PROBLEM

One of the clearest documented issues concerns electronic door-swipe records from the neonatal unit at the Countess of Chester Hospital.

During Letby’s original trial, prosecutors relied on swipe-card information to help establish where staff members were at particular times.

The Crown Prosecution Service later acknowledged that data relating to one door had been mislabelled, meaning entries and exits were incorrectly represented. The information was corrected before Letby’s 2024 retrial.

The mistake became particularly significant in the case of Child K, a premature baby whose attempted murder charge was retried after the original jury could not reach a verdict.

During the retrial, prosecutors acknowledged that the corrected data showed another nurse had returned to the unit at the relevant time—meaning Letby was not the only person present, contrary to the impression created by the original data.

WHAT DID DR. RAVI JAYARAM SAY?

Jayaram was a key prosecution witness concerning the events involving Child K.

The prosecution’s case was that he entered the neonatal unit and encountered Letby near the baby’s incubator while the infant was deteriorating.

But questions have subsequently been raised about whether Jayaram’s later testimony was consistent with earlier accounts.

Sir David Davis has urged police to investigate whether Jayaram’s evidence amounted to perjury, pointing to an earlier email that he says appears to conflict with testimony given during Letby’s trial.

That does not establish that Jayaram deliberately lied.

It does, however, explain why Davis and Letby’s supporters are demanding that the evidence and chronology be examined more closely.

NEW INTERVIEW NOTES ADD TO THE CONTROVERSY

Recent reporting has focused on police interview notes from preparations for Letby’s retrial.

A July 2026 report described material suggesting that investigators discussed how the interpretation of the swipe-card evidence could be handled after the discrepancy was discovered.

That development has fueled allegations online that police were attempting to “reshape” the evidence.

But there is an important difference between correcting erroneous evidence and deliberately manipulating evidence to secure a conviction.

The available reporting does not establish that investigators fabricated evidence or secretly instructed Jayaram to give false testimony.

THE CPS HAS DEFENDED THE RETRIAL EVIDENCE

The CPS has acknowledged the swipe-card error but maintains that accurate data was presented during the retrial.

It has also argued that the error did not have a meaningful impact on the prosecution’s broader case, which involved multiple strands of evidence.

The prosecution ultimately secured a conviction against Letby for the attempted murder of Child K during the retrial.

Letby continues to deny killing or attempting to kill babies in her care.

WHY THE DISPUTE MATTERS

The controversy is significant because location evidence was an important part of the prosecution’s original case.

If electronic records used to establish where medical staff were at particular moments contained errors, questions naturally arise about how those records were checked, presented and interpreted.

That does not automatically invalidate every conviction.

But it does make transparency particularly important.

Sir David Davis has argued that authorities should explain exactly what went wrong, when the problem was discovered and whether any other evidence was affected.

THE BIGGER QUESTION: WAS IT A MISTAKE OR SOMETHING MORE?

That is ultimately the question at the center of the current controversy.

Was the incorrect swipe-card information simply an investigative error that was eventually corrected?

Or did investigators knowingly alter their interpretation of the evidence in order to preserve the prosecution’s case?

The first is supported by the CPS’s own admission that the data was incorrectly labelled.

The second is a serious allegation that has not been established by a court.

The distinction matters enormously in a case involving convictions for the deaths and attempted killings of vulnerable newborn babies.

LETBY’S CONVICTIONS REMAIN IN PLACE

Letby was convicted in 2023 of murdering seven babies and attempting to murder six others. She received whole-life sentences.

In 2024, she was convicted at retrial of attempting to murder Child K, resulting in another whole-life order.

Her legal team continues to challenge the convictions, while a wider public debate has emerged over the medical, statistical and investigative evidence used against her.

The case has attracted support from critics who believe serious flaws may have affected the prosecution, while authorities continue to defend the integrity of the convictions.

THE CLAIMS THAT STILL NEED ANSWERS

The controversy now centers on several concrete questions:

Why was the swipe-card data incorrectly labelled?

How many pieces of evidence were affected by the error?

When did investigators discover the problem?

Why did the original evidence differ from the corrected version?

Were any witness accounts influenced by the corrected interpretation?

And perhaps most importantly:

Did the errors materially affect the convictions?

Those are questions that can be investigated through documents, forensic examination of records and proper legal review.

What cannot responsibly be claimed at this stage is that a secret police conspiracy has already been proven.

A CASE UNDER RENEWED SCRUTINY

The Lucy Letby case is once again facing intense scrutiny—not because a court has overturned her convictions, but because documented problems with evidence and continuing questions about witness testimony have created legitimate demands for greater transparency.

The swipe-card error is real.

The CPS has acknowledged it.

Questions about Dr. Jayaram’s evidence have been publicly raised.

And Sir David Davis is calling for further investigation.

But the leap from those facts to an allegation that police and a key witness colluded to manufacture a conviction remains unproven.

The evidence deserves scrutiny. So do the allegations. And ultimately, only a proper independent review can determine whether what happened was an innocent investigative error—or something far more serious.