The Government is to inject £5 million into a new fight against knife crime.
A number of towns and cities will be selected to run pilot schemes designed to combat the scourge of knife-related crimes after a series of high-profile murders.
It comes the day after senior judges expressed their concern over the "escalating and grave" problem of knives and other offensive weapons being carried on Britain's streets.
The Home Office will also publish results of a project launched last September to crack down on gun and gang crime in London, Liverpool, Manchester and Birmingham. A Home Office spokeswoman said the Tackling Gangs Action Plan had been a success.
"We are not saying it has solved gun and gang crime but it is an indication of what a focused effort can achieve," she said. "We are happy with how it has gone."
Figures on the number of offences and injuries caused by gun-related crime before and after the initiative - due to be published later today - are expected to show a significant fall.
On the new knives scheme, the spokeswoman said it will be set up in major metropolitan areas in England and Wales, in consultation with the Association of Chief Police Officers. The locations have not yet been decided.
Its launch follows outrage over a spate of knife murders, many involving teenagers in London.
Separate funds will also be announced today to continue the guns and gangs project in the four cities on a rolling basis. The Department for Education and Skills is also due to publish guidance for teachers on tackling gang culture in schools.
The senior judges warned that knife offences were now reaching "epidemic proportions" and must be met with severe sentences.
Sir Igor Judge, sitting with two other judges in the Court of Appeal in London, said that "carrying a knife or an offensive weapon without reasonable excuse is a crime which is being committed far too often by far too many people".
Sir Igor said: "Offences of this kind, carrying an offensive weapon or knife, have recently escalated. They are reaching epidemic proportions."
He described the current situation as "grave".
It was also reported that witnesses could be given immediate anonymity when they come forward to testify against gangs under Government plans.