POLICE have revealed more than £350,000 has been spent investigating the murder of Valerie Graves in Bosham.
A freedom of information request by the Observer revealed more than 250 officers had been involved in the investigation, from the Surrey and Sussex Major Crime Team, West Sussex Division, police staff from Sussex and Surrey Police, and Thames Valley Police.
Valerie Graves, 55, from Bracklesham Bay was brutally murdered on December 30, in a property in Smugglers Lane, Bosham, where she was house-sitting.
Despite a wealth of media coverage, two Crimewatch appearances and a £350,000 investigation, the killer has not been caught.
Ms Graves was bludgeoned with a hammer while she slept, and died of head and facial injuries.
Police said they were working on the hypothesis the killer was not known to Ms Graves.
Detective Chief Inspector Jason Taylor, of Surrey and Sussex Major Crime Team, said: “Eight months have passed since Valerie was murdered, but we remain determined to find her killer.
“We continue to have a significant number of officers and staff working on the investigation. This inquiry remains a priority for the force.
“We are determined to get justice for Valerie and her family and this case will remain open until we do so.”
There is a £10,000 reward from Sussex Police, for anyone who can give investigators information which will lead to the conviction of the killer.
Police have also set up a dedicated website for the case, at www.valeriegravesmurder.com