The body of a man lay inside his van parked at a pub in Cambridgeshire for four months.
The landlady of the Lazy Otter at Stretham near Ely said police ignored her attempts to tell them the van was there.
The death of Paul O'Brien from Cambridge is not being treated as suspicious but the police say they are reviewing their response.
More top news
Newmarket javelin thrower Goldie Sayers could finally get an Olympic bronze after a Russian athlete reportedly failed a drugs test.
Rather cloudy with outbreaks of rain
The Duchess of Cambridge has praised the "amazing and life-changing" work of children's hospices in a touching and personal letter.