Johnson appointed himself chair of the Metropolitan Police Authority (MPA), and in October 2008 successfully pushed for the resignation of Metropolitan Police Commissioner Ian Blair after the latter was criticised for allegedly handing contracts to friends and for his handling of the death of Jean Charles de Menezes. This earned Johnson great respect among Conservatives, who interpreted it as his first act of strength. Johnson resigned as MPA chairman in January 2010, but throughout his mayoralty was highly supportive of the Metropolitan Police, particularly during the controversy surrounding the death of Ian Tomlinson. Overall crime in London fell during his administration, but his claim that serious youth crime had decreased proved to be false, and he acknowledged the error. Similarly, his claim that Metropolitan Police numbers had increased was characterised as untrue, but the fact-checkers at Full Fact felt that both Johnson's and his critics' positions are defensible. He was criticised for his response to the 2011 London riots; holidaying with his family in British Columbia when the rioting broke out, he did not return immediately to London, only doing so 48 hours after it had begun and addressing Londoners 60 hours thereafter. Upon visiting shopkeepers and residents affected by the riots in Clapham, elements within the crowds booed and jeered him.