How Trident hones in on gun crime / BBC, 15 Feb 2007
http://news.bbc.co.uk/1/hi/uk/6364529.stm
Jenny Percival
"Guns are removed from circulation by the Metropolitan PoliceGun crime across England and Wales has increased every year over the last decade. But three fatal shootings of teenagers in less than two weeks in south London have reinforced the need to focus resources on certain areas. "