The Nottinghamshire Healthcare NHS Foundation Trust is under a corporate manslaughter investigation following a series of violent attacks carried out by a former patient, highlighting significant concerns about the management of individuals with severe mental health conditions. The probe centers on incidents involving Valdo Calocane, who fatally stabbed three people and seriously injured others in Nottingham in June 2023.
Calocane, 34, diagnosed with paranoid schizophrenia and subject to multiple detentions under the Mental Health Act, was discharged by the trust despite a history of violence and non-compliance with medication. He pleaded guilty to manslaughter by diminished responsibility for the deaths of Grace O’Malley-Kumar and Barnaby Webber, both 19-year-old students, and Ian Coates, a 65-year-old school caretaker. In addition to the stabbings, Calocane attempted to kill three pedestrians by striking them with a van. He is currently serving an indefinite hospital order.
Police have informed the trust’s leadership to preserve all relevant records as part of the investigation. The corporate manslaughter inquiry, led by Northumbria police following a preliminary review by another force, marks a significant development as it examines whether the trust holds direct responsibility for the fatal outcomes resulting from Calocane’s release into the community. This would be the first case of its kind in the UK specifically targeting a mental health trust under such charges.
The inquiry comes amid broader concerns over systemic failings. Evidence assessed during the investigation pointed to flawed risk assessments, inadequate escalation of treatment, poor information sharing between agencies, and police failures including not arresting Calocane despite an outstanding warrant. These failures contributed to the inability to prevent the attacks. Additionally, records show that in the four years before the June 2023 incidents, there were 15 other serious violent attacks involving current or former patients under the trust's care.
The investigation has prompted a statutory inquiry, chaired by Her Honour Deborah Taylor, which is set to hear final submissions later this year. The trust has pledged full cooperation with both the police inquiry and the statutory review.
Legal experts suggest the case could have wide-ranging effects on mental health service delivery across the country. Josh Hughes, a specialist in complex injury law, noted that the shift from treatment failures to potential criminal liability for the trust represents a notable change in the way such cases are approached, potentially influencing future safety protocols and accountability measures in mental health care.