CCTV footage scene outside the butcher's shop
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Man convicted of knife attack on police in Kingsbury

10 December 2012 Last updated at 21:33 GMT

A man has been convicted of trying to kill two police officers and seriously injuring two more when he lashed out with a knife at a butcher's shop in Kingsbury, north-west London.

The attack by Christopher Haughton in November last year, left three constables needing surgeries.

The violent attack by Haughton, who was later diagnosed with paranoid schizophrenia, led to the Metropolitan Police Commissioner Bernard Hogan-Howe calling for more officers to be armed with Taser stun guns.

BBC London's Home Affairs Correspondent, Guy Smith, spoke with PC Tom Harding, who was injured, and Insp Keely Smith.