Joanne Dennehy: Triple killer was under probation service supervision

Joanne Dennehy Image copyright Cambridgeshire Police
Image caption Joanne Dennehy killed three men in Cambridgeshire and attempted to murder two dog walkers in Hereford, while on the run

Triple killer Joanne Dennehy was under the supervision of probation workers when she murdered three men, the BBC can reveal.

Dennehy, 33, from Peterborough, is serving life for the murders of three men in 2013.

A report highlights "deficiencies" by the probation service, but says there is "no evidence that these contributed directly" to the deaths.

Christina Lee, widow of victim Kevin Lee, criticised the failings.

"We have been left numb by the failings identified... and it has left us wondering whether my husband would still be alive today had they done their job properly," she said.

Joanne Dennehy: The woman with a 'sadistic lust for blood'

Image copyright Cambs police
Image caption The bodies of (l to r) Lukasz Slaboszewski, Kevin Lee and John Chapman were found in remote ditches in Cambridgeshire

Dennehy had been given a community order of 12 months for assault and being in control of a dangerous dog.

She was supervised by the Cambridgeshire and Peterborough Probation service, but she missed appointments with probation officers after going to Lincolnshire.

The restricted report, seen by the BBC, says a "more experienced offender manager" should have been appointed to deal with the "complexities" of the case.

It says there was no contact with Dennehy when she was in prison which was a "missed opportunity".

Image copyright Cambs Police
Image caption Joanne Dennehy stabbed her victims through the heart and dumped their bodies before going on the run and stabbing two dog walkers

The probation service risk appraisal of Dennehy was that she had the "potential to cause serious harm" but was unlikely to do so "unless there was a significant change in circumstances".

The report said the probation service should have looked into this further.

It recommends the probation services undertake greater "risk of harm" analysis of cases and that there is additional training for probation officers.

Dennehy murdered Lukasz Slaboszewski, 31, Kevin Lee, 48, and John Chapman, 56, in March 2013 before dumping their bodies.

She went on the run and subsequently stabbed dog walkers Robin Bereza, 64, and 56-year-old John Rogers in Hereford.

A Probation Service spokesman said: "Our sympathies are with the families of the victims following these abhorrent crimes.

"Public protection is our priority and in the very rare case of serious further offending a review is carried out to identify any areas for improvement.

"Recommendations from this review were taken on board at the time and action was taken to improve the management of cases going forward."

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