The Metropolitan Police has issued a new picture of PC Andrew Duncan, who died following a suspected hit-and-run collision in Sutton.
A further two men have been arrested in connection with the crash, after another was remanded in custody accused of causing death by dangerous driving.
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The pathologist described the injuries as similar to those usually seen in a car crash.
Unlike in the countryside peregrines have no predators in the city and their numbers are on the rise.
You can help keep an eye out for the capital's worst potholes by reporting them on an interactive map.