UK figures for 2002, would seem to agree:

Gun crime trebles as weapons and drugs flood British cities from telegraph.co.uk

Text of article replaced by link. --JoeClone, 1-Mar-04.

Up by 46% in 2002, there was what the police refer to as a "slow-down" of around 3% in 2003. That is still a good indication that the law introduced after Dunblane did not do what it was supposed to do. Illegal arms are coming in from eastern Europe, case a few weeks ago, where 34 small machine pistols were discovered packed inside the spare tyre of a truck stopped for a routine inspection at Dover.