Death of Buckinghamshire man Shaun Elliott investigated
The death of a "vulnerable" Buckinghamshire man is to be investigated by the Independent Police Complaints Commission (IPCC).
Shaun Elliott was reported missing to Thames Valley Police on 8 July.
IPCC commissioner Mike Franklin said: "My condolences go to the family and friends of Mr Elliott for their sad loss.
"We will be arranging to meet them to explain how the IPCC will conduct its investigation."
Mr Elliott, 43, was last seen by staff at the care home in High Wycombe, where he lived, two days before his disappearance was reported.
On 11 July, Wycombe General Hospital alerted police that Mr Elliott had been taken ill at an address in Amersham, about seven miles away. He died later that day.
Mr Franklin said: "Our investigation will examine how the police handled the missing person report, the decisions made and what action Thames Valley Police took in order to determine if what they did was sufficiently diligent and appropriate.
"The IPCC investigation will look at whether force policy and practice was followed.
"We will also consider if there is any organisational learning from this incident and whether the incident highlights good practice."
Thames Valley Police are investigating Mr Elliott's death and will be preparing a file for the coroner.