DETECTIVES were so concerned about Danilo Restivo’s behaviour in Bournemouth they warned all those close to the killer to stay away.

Det Supt Phil James and Det Supt Mark Cooper make a risk assessment based on police intelligence of Restivo and issued a number of risk management Osman Warnings to people, including Restivo‘s wife Fiamma Marsango.

They explained her life was at risk if she stayed living with Restivo.

Similar warnings were also issued to Fiamma‘s two sons, their girlfriends and foreign students who would stay with the couple for short periods of time.

Det Supt Cooper said: “It’s a contract which says to someone we think you are in danger and for these reasons we would like you to do A, B, or C.”

If any individual chooses to ignore an Osman warning they are asked to sign a form to confirm it has been given to them.

A legal ruling directing that police have a “duty of care” to issue alerts, not only to civilians but also to known criminals, was introduced after a high-profile failure by officers to protect several individuals from Paul Paget-Lewis, a teacher suffering from psychotic tendencies who killed four people.