Evidence presented in the first trial of
Lucy Letby showing which staff came in and out of the baby unit she worked on was incorrect, the Crown Prosecution Service has acknowledged.
The Crown Prosecution Service: the discrepancy discovered was related to one door in the neonatal intensive care unit and that it had been corrected for the retrial.
A spokesperson for the Mersey-Cheshire Crown Prosecution Service said: “The CPS can confirm that accurate door-swipe data was presented in the retrial.”
David Davis, the Conservative MP, has written to Sarah Hammond, chief crown prosecutor of Mersey-Cheshire CPS, asking her to “urgently make clear” what timing errors were made during the first trial and how they related to the prosecution’s case.
Davis, who is planning to bring a parliamentary debate after the summer recess, said: “The door-swipe data is clearly vital to knowing which nurse was where at one point in time, and this in turn was vital to the prosecution’s case in the first trial.
“It is therefore essential that the CPS makes it plain whether those errors occurred throughout any of the evidence of the first trial.”
In the initial trial, the prosecution said Dr Ravi Jayaram, a consultant, had discovered Letby standing over Baby K at 3.50am on 17 February 2016. The baby was deteriorating and its breathing tube had been dislodged.
The prosecution said door-swipe data showed that the baby’s designated nurse had left the intensive care unit at 3.47am. But the data was amended in the retrial to show the nurse had returned at that time, meaning Letby was not alone.