London Assembly member John Biggs told London Tonight that one in three businesses affected by the London riots had not received insurance payments by Christmas last year.
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Rising pupil numbers in the capital are putting pressure on the system.
Darren February, 33, has been sentenced to eight years in prison for stealing almost £1 million worth of jewellery from Simon Cowell's home.
Stephen Calcutt, 55, is displaying his work in a London exhibition later this month.