CCTV cameras across London help solve almost six crimes a day, the Metropolitan Police (Met) has said.
Det Ch Insp Mick Neville, who heads the Met's identification unit, said CCTV images were "treated like fingerprints and DNA" by the force.
The number of suspects who were identified using the cameras went up from 1,970 in 2009 to 2,512 this year.
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