Jo Swinson has said her party would invest £500 million into youth services to combat knife crime if they win the election on December 12.
Shane O'Brien slashed the neck of 21-year-old Josh Hanson at a west London bar before fleeing the UK in a private plane.
Children have been caught with knuckle dusters, a Taser and even a sword at school.
Greater Manchester Police have said specialist officers are responding after five people were stabbed at Arndale shopping centre.
The Metropolitan police dealt with two separate knife crime incidents that left a 15 and 18-year-old dead within five hours of each other.
A man has been charged with two counts of attempted murder after a mother and three-week-old baby were stabbed.
A 20-year-old football fan, who was stabbed to death at a London Underground station, has been named as Tashan Daniel.
Police have appealed for witnesses after a fatal stabbing in Camden, the third incident in the London borough in the space of a week.
A man inspired by the Christchurch mosque attacks was jailed for more than 18 years for stabbing a teenager in a bid to “murder a Muslim”.
Six teenagers jailed for the murder of an 18-year-old have had their identities made public for the first time.
Police have launched a murder investigation after a 24-year-old man was stabbed to death at an Underground station.
Asda, Tesco, Poundland and Home Bargains sold knives to underage children at least 15 times, National Trading Standards has claimed.
More than 1,000 children were caught carrying knives in schools last year - with the youngest aged just four, new figures show.
Plans by the Home Office to put anti-knife messages on fried chicken boxes have been slammed as “embarrassing”, “offensive” and “racist”.
A 16-year-old boy who was stabbed to death in north-west London was being chased by three men with machetes, according to a witness.
Two teenagers are on trial for murder after 23-year-old Glendon Spence was stabbed to death at a south London youth centre.
The family of 28-year-old PC Outten said they are "incredibly proud" of the bravery he showed after he was stabbed with a machete.
Muhammed Rodwan will appear in court charged with attempted murder after a policeman was stabbed in the head in Leyton, east London.
A mother has told Julia Hartley-Brewer that shows like Peaky Blinders contribute to the "negative imagery" influencing youngsters.
Knife possession offences committed by women and girls in England have risen by at least 10 per cent each year since 2014.
A police officer is in a critical condition after being stabbed a number of times with a machete in a "sudden and brutal attack" in east London.
Police have released new footage of the getaway car believed to have been driven by those who stabbed and killed a man in north London.
He said a rise in knife crime can be combatted with an increase in stop and search in concert with Boris Johnson’s police recruiting drive.
A man has been sentenced to an indefinite hospital order after attacking patients at two London health centres.
A 17-year-old boy has admitted perverting the course of justice after the death of teenager Yousef Makki.
The London Mayor said new data published by City Hall showed a "direct link" between poverty and knife crime.
A 17-year-old boy has been cleared of murdering his grammar school friend with a flick knife during a fight.
The newborn son of a pregnant woman who was murdered in south London on Saturday has died in hospital.
A man accused of murdering a fellow train passenger was paranoid schizophrenic and struggled on public transport, a court has heard.
Jurors have watched shocking video of a "quick and frenzied" fatal attack on a train passenger.
A man has died following a triple stabbing in north London - the fifth killing in the capital in six days.
The number of stop and searches under enhanced police powers has increased by 423 per cent in a year in London.
Almost one in four (24 per cent) of young people say they feel at risk because of violence in their community, according to the Prince's Trust.
The chair of the all-party parliamentary group on knife crime has said that youth workers are “absolutely key” to tackling the rise in knife crime.
A 17-year-old boy accused of murdering grammar school pupil Yousef Makki in a knife attack is to appear in court today.
A university drop-out has been found guilty of a knife attack on four police officers after they responded to a fake 999 call.
Nazir Afzal, a former Chief Prosecutor of North West England, has said that mental health issues "play a significant part" in the rise of knife crime.
A man has appeared in court charged with five counts of attempted murder after a series of stabbings in north London.
The former Deputy Assistant Commissioner of the Metropolitan Police has said that legalising drugs would “significantly reduce” street violence.
A man in his 30s has been arrested by police investigating a stabbing in Enfield, north London on Tuesday, the Metropolitan Police has said.
Teachers, nurses and police officers could be held accountable for failing to "spot warning signs" of violent crime among young people, under government plans announced today.
A former Scotland Yard Detective Chief Inspector has welcomed suggestions that school pupils could be subject to stop and search in an attempt to tackle knife crime.
Cocaine users have "blood on their hands" and should be fined up to 100 per cent of their income if caught in possession, MPs have heard.
Conservative MP Christopher Chope has said teenagers at risk of knife crime should learn self defence rather than carry a knife.
Theresa May was accused of breaking a promise to knife crime victims over the time taken to organise a Downing Street summit.
Half of online retailers tested are breaking the law by selling blades without age checks, according to the trading standard watchdog.
The Conservative MP who suggested that all knives should be equipped with GPS trackers to combat knife crime has admitted it was “probably a s**t idea".
The number of criminals caught with knives or dangerous weapons has hit its highest level in nearly a decade, according to official figures.
The national chairman of the Police Federation has said it is “clear” that the home secretary had fought for the £100million extra funding announced on Wednesday, because Theresa May has shown “nothing but contempt for policing”.
The education watchdog has called for "multi-agency partnerships" to help bring instances of knife crime down.