The prosecution wants psychiatric reports compiled on Mark Corner

Mark Corner, 26, pleaded guilty to the manslaughter of Hanane Parry and Pauline Stephen on the grounds of diminished responsibility at Liverpool Crown Court in October. He denied murder.

Body parts of Miss Parry, from Chester, and Miss Stephen, of Skelmersdale, Lancashire, were found dumped in bin bags in an alleyway in the Everton area of the city earlier this year.

At the hearing, the prosecution accepted psychiatrists' reports he was suffering from paranoid schizophrenia at the time.

Care review

Corner had been known to psychiatric authorities since he was 17-years-old, and was a community patient of Merseycare NHS Trust.

The trust says it is reviewing the way it cared for him.

In a statement it said: "Providing care in the community for patients with mental health problems is not an exact science, and ensuring service users take medication regularly and attend for appointments can be problematic."

The dismembered bodies of Miss Parry, 19, and Miss Stephen, 25, were found in the red light district of St Domingo Vale on 20 July.

Body parts were later discovered in bin bags at the back entrance to Corner's flat in Everton, in his freezer, and dumped at Stanley Park, in the shadow of Liverpool FC's ground.

Police were alerted to Corner's crimes after he confessed what he had done to his brother Ian.

After he was arrested, psychiatrists concluded he was suffering from "hallucinations, delusions and violent and sadistic thoughts".