Serial killer Joanna Dennehy was being supervised by probation when she murdered three men

Dennehy, 33, from Peterborough, is serving a whole-life sentence for the three murders and for stabbing two more men over a 10-day period in

March 2013.

Now a restricted report seen by BBC East has highlighted deficiencies by the probation service in monitoring the killer, who was described as

having a “sadistic lust for blood”.

The report, entitled Serious Further Offence Review and completed in March 2014, describes how Dennehy had been given a 12-month community

order for assault and being in control of a dangerous dog in 2012.

The killer, who had served time in prison for theft and drug offences,

was supervised by the Cambridgeshire and Peterborough Probation service but missed appointments, the BBC reported.

A “more experienced offender manager” should have been appointed to deal with the complex nature of the case, the report adds.

The 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”.

It also says there were “missed opportunities” as probation workers had no contact with Dennehy while in prison.

It recommends probation services carry out greater “risk of harm” analysis of cases and additional training for probation officers.

The Ministry of Justice is expected to comment on behalf of the probation service later.

Dennehy murdered Lukasz Slaboszewski, 31, Kevin Lee, 48, and John Chapman, 56.

She stabbed her victims, who she knew, through the heart and dumped their bodies in remote ditches around Peterborough.

She then went on the run with her accomplices, before randomly selecting and stabbing two dog walkers in Hereford.

Sentencing judge Mr Justice Spencer described her as ‘’a cruel, calculating, selfish and manipulative serial killer”.

He added that she told a psychiatrist: ‘’I killed to see how I would feel, to see if I was as cold as I thought I was, then it got moreish.’’

Prosecutor Peter Wright QC outlined how Dennehy, who abused drugs and alcohol, was admitted to a psychiatric unit at Peterborough City

Hospital between February 18 and 21, 2012.

She was diagnosed with a personality disorder, psychopathic, anti-social and emotional instability disorders and an obsessive compulsive

disorder.

Dennehy recently hit the headlines once again after lodging a High Court claim for damages, saying her incarceration in segregation at HMP Bronzefield near Ashford, Surrey, breached her human rights.