Yes mate its going up. eg from 1997 to 2003 straight AFTER the gun ban gun crime rose by over 50 percent. Over the last ten years VIOLENT CRIME ( gun, knife, acid, robbery, sex attacks etc EXCLUDING terrorism) has rise by around 20 percent a year according to two reputable sources.
Part of the problem is the culture of political correctness and FEAR , The Police are terrified of being accused of racism. In London blacks make up 8% of the population but are responsible for 60% of all street crime. BUT when the police targeted the black street gangs the black community and the left screamed RACISM from the roof tops so the police stopped going after the black street gangs.