Three men have been sentenced to a total of nearly 50 years in jail for a spree of violent robberies targeting staff carrying cash from supermarkets and shops in counties around London.
The group used a range of weapons to scare and intimidate staff into handing over cash, as Ronke Phillips reports.
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David Cameron said the Met proved it can "do more with less" and declined to criticise the Mayor of London for his water cannon spend.
A group of disabled activists threw toys and balls at him as he entered the conference.
A wet start to the week and the unsettled weather is set to continue over the next few days.