The number of suspects who were identified using the cameras went up from 1,970 in 2009 to 2,512 this year.
The number of cameras in Britain has gone up from 21,000 in 1999 to 59,753 in 2010,
The Met said among the 2,512 suspects caught this year, four were suspected murderers, 23 rapists and sex attackers and five wanted gunmen.
“With VHS people held 31 tapes, one for each day of the month, and it did not require specialist officers to get hold of the stuff.
“People are now being confronted by computers and hard drives and told to get those images and it is not as easy.”