The 16 year-old who was knocked unconscious in an unprovoked attack in Plaistow has described what she remembers to Paul Brand.
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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.