Joanne Dennehy case to be reviewed by NHS over mental health contact
An NHS investigation is to be carried out into a mentally ill woman who was sectioned before murdering three men.
Joanne Dennehy, 31, pleaded guilty to murdering three men in Cambridgeshire and attempting to kill two others in Hereford in November.
A diagnosed psychopath, Dennehy, of Peterborough, was jailed for a whole life term at the Old Bailey earlier.
NHS England (East Anglia) said it would be looking at whether the case merited a serious case review.
Dennehy murdered Lukasz Slaboszewski, 31, Kevin Lee, 48, and John Chapman, 56, in March last year.
Their bodies were all found in ditches in Cambridgeshire in March and April. Dennehy also admitted attempting to murder Robin Bereza and John Rogers in Hereford in April.
A year before the murders, Dennehy stayed in a psychiatric ward at Peterborough City Hospital.
At that stage - in February 2012 - she was diagnosed with a personality disorder and an obsessive compulsive disorder.
She has since been diagnosed with several personality disorders including psychopathic disorder.
When she was arrested in Hereford last April, she said she had stopped taking her medication the week before.
Cambridgeshire and Peterborough NHS Foundation Trust said it took "patient confidentiality extremely seriously and therefore cannot comment on any individual's care and treatment".
A spokesperson for NHS England (East Anglia) said: "Where health services are found to have not met the required standards, [we] will investigate and take appropriate action.
"After legal proceedings are concluded, this case will be considered against guidance for eligibility for a serious case review in order to determine whether a review is appropriate."