CPS admits wrong door swipe data used in Lucy Letby's trial, leading to a retrial and MP investigation.

The Crown Prosecution Service (CPS) admitted incorrect door swipe data was used in Lucy Letby's trial, who was found guilty of murdering 7 babies and attempting to kill 6 others at the Countess of Chester Hospital. The data had been mislabeled, with the discrepancy corrected for the retrial. Conservative MP Sir David Davis is investigating the accuracy of the evidence used in the trial, which has led to scrutiny of the validity of Letby's initial trial.