A hospital has apologised to the family of a woman who died in childbirth when powerful drugs were wrongly injected.
Mrs Cabrera had a heart attack shortly after giving birth
Theatre nurse Mayra Cabrera, 37, suffered a heart attack after an epidural was fed into her arm instead of her spine.
She had been giving birth at Swindon's Great Western Hospital, where she had worked, in May 2004.
A police investigation is under way.
A spokeswoman for the hospital trust said: "We are deeply sorry."
She added: "Although such incidents are very rare indeed, we appreciate this can be of little comfort to Mr Cabrera and his family who have shown great dignity throughout.
"Once the evidence was conclusive that there had been an error on our part, we immediately admitted liability and have continued to do so ever since."
Detective Inspector Ian Saunders, of Wiltshire Police, said an independent medical expert was currently reviewing the evidence gathered on Mrs Cabrera's death.
The case file is to be examined by the Crown Prosecution Service to "determine the extent of criminal liability, if any, that exists on the part of either the individuals concerned or the trust itself," he said.