The Independent Police Complaints Comission (IPCC) has published a report highlighting failings in the working practices of the Southwark Sapphire Unit - a police department dedicated to investigating serious sexual violence.
It found that officers there wrote off allegations as "no crimes", so they could reduce the number of unsolved cases on their books and meet official crime detection targets.
Ronke Phillips reports.
More top news
It will be increasingly cloudy this evening, with sporadic outbreaks of rain or drizzle spreading in during the first half of the night.
A derelict north London garage has gone on sale for £360,000 - more than the cost of a flat on the same road.
It has been described as like a scent from heaven - and the perfume that smells like a comet it set to be handed out in London.