All they have to do is to go to a special website to look at video imgaes.
"You can help us keep Sutton safe by recognising anyone from our internet-based CCTV image gallery at: http://ow.ly/wp6ZC
"If you can identify anyone or have information about anyone in the gallery, please contact our non-emergency number on 101 quoting the suspect identity number assigned to each image or call Crimestoppers anonymously on 0800 555 111. We have already identified and arrested several suspects with the help from members of the public," said a spokesperson.