Facts about knife crime: understanding children who carry weapons

Knife crime remains a serious issue across England and Wales, particularly for children and young people. Last year, 244 people tragically died after being assaulted with a knife, with 32 of these being children.

Most recently, the shocking killing of 14-year-old Daniel Anjorin sparked renewed calls to rid dangerous weapons from our streets. High-profile cases like these continue to raise urgent questions about how we prevent young people from becoming involved in violence. While recent data suggests some improvements, understanding the facts behind these trends is essential to tackling the root causes of knife crime.

Key facts about knife crime

Every life lost due to violence is one too many. However, violence isn’t inevitable and recent data shows there are reasons to be cautiously optimistic. Here are some of the most important facts about knife crime affecting children and young people across England and Wales:

• Our core indicators for youth knife crime show that hospital admissions for knife assault fell by 9% in 2022/23 (the latest year of data)
• In the same year, homicide victims from knife or sharp object assault also fell by 13%.
• Offences recorded by the police involving a knife or sharp weapon remain 7% below pre-pandemic levels, despite increasing over the past two years.

While knife crime remains a relatively small proportion of overall crime, its impact is severe — particularly for children, families and local communities affected by serious violence.

Knife-related offences, hospital admissions and homicides: percentage change compared to 2019/20 levels (England and Wales)

Sources: NHS Hospital Episode Statistics; Home Office Homicide Index; Office for National Statistics: Offences involving the use of weapons 

What do these facts about knife crime tell us about young people?

Despite these recent improvements, the damage done by weapons-related violence remains far too prevalent. In order to tackle it, we need to understand and address the factors underlying weapon carrying. 

To better understand the facts about knife crime among young people, we’ve analysed the data from our Children, Violence and Vulnerability Survey, collected last year. This was a nationally representative survey of over 7,500 13 to 17-year-olds across England and Wales. Below we highlight five key insights about children and young people who said they’d carried or used a weapon. 

From their responses, we found that…

1. They are part of a small but vulnerable minority group of young people

4% of young people who responded to our survey said they’d carried a weapon in the past 12 months – equivalent to over 140,000 13-17-year-olds in England and Wales. These children are amongst the most vulnerable. Compared to all respondents, they were more likely to be regularly absent from education (16% vs 8%), be supported by a social worker (50% vs 15%), have had contact with the police (34% vs 3%) and to say they’d been in a gang (48% vs 5%).

2. They were less likely to feel safe at home and school

For most children, home and school are safe places. However, teenage children who carried a weapon were less likely to feel safe at home, in school and at friends’ or relatives’ homes. Just over half (55%) of 10-17-year-olds who reported carrying a weapon said they felt very safe in their own home compared to 84% of all 10-17-year-olds. 76% felt safe in school (vs 85% for all 10-17-year-olds) and 81% at friends’ and relatives’ homes (vs 93% for all 10-17-year-olds). They were also more likely to feel safe in places where others felt unsafe: in youth clubs, on public transport and in public parks. 

3. They were more likely to have been exposed to weapons on social media  

Almost all children who’d carried a weapon in the past 12 months had seen at least one type of violent content on social media in the same period – 94% vs 60% of all 13-17-year-olds. Around two-thirds (68%) said they’d seen other children or young people carrying, promoting or using weapons on social media. This compares to 29% of all respondents, making them 2.3 times more likely to have seen such content. They were significantly more likely to say that, given the opportunity to turn off social media for themselves and everyone they knew, they would do it.

4. They were significantly more likely to have been personally affected by violence 

Not only were children who’d carried weapons more likely to have seen violence on social media, they were also more likely to have experienced violence themselves. 82% had witnessed violence in person and 65% had been a victim of violence – almost four times the rate for all 13-17-year-olds (16%). Of those who’d carried weapons, 31% had been threatened or hurt with a weapon specifically, compared to 6% of all 13-17-year-olds.

5. Many of them had actually used a weapon to threaten or hurt someone 

Children who’d carried weapons were more likely to say they’d perpetrated violence themselves. 71% said they’d been violent in the past year and 70% said they’d used a weapon to threaten or to hurt someone – compared to 15% and 7% for all 13-17-year-olds. The most common reason given for being violent was feeling threatened or provoked (52%). But compared to children who’d perpetrated any kind of violence, they were more likely to give gang, neighbourhood or school rivalry (40% vs 16%), being bullied (29% vs 23%), theft (16% vs 6%) and pressure from someone else (16% vs 7%) as reasons they’d perpetrated violence.

Main causes of knife crime among young people

Knife crime is often linked to a combination of factors rather than a single cause alone. Instead, it is the result of overlapping risks in a child’s environment, experiences and relationships. Our research shows that children involved in knife crime are more likely to:

• Feel unsafe at home or school, and lack supportive environments
• Experience or witness violence, both in person and online 
• Be influenced by peers, social media, or local contexts where carrying weapons is normalised
• Face challenges such as exclusion from school, contact with the justice system, or lack access to trusted adults

These facts highlight that knife crime is closely linked to vulnerability and exposure to harm. For many young people, carrying a weapon is not simply a choice, but a response to feeling unsafe or under threat.

Understanding these underlying causes is essential for designing effective prevention strategies, such as approaches that improve safety, strengthen relationships, and provide consistent support, so that we can reduce young people’s involvement in violence.

What can be done to prevent knife crime among young people? 

These facts demonstrate that children who carry weapons are at increased risk of experiencing and perpetrating violence. And they are less likely to have access to spaces – such as home and school – where they can feel safe.  

While these findings should cause concern, violence isn’t inevitable. There are things we can do to protect young people from becoming involved in knife crime:  

1. Prioritise what works to prevent knife crime  

The YEF Toolkit summarises the best available research about the effectiveness of different approaches to preventing violence.

If you work in the education sector, read our recommendations onwhat can be done in schools, colleges and Alternative Provision to reduce children’s involvement in violence.

2. Reform systems to protect and support children

Reforming policies and systems that support children—such as children’s services, the youth sector and youth justice—can enhance support for those most vulnerable to violence. Learn more about improving support for arrested children in our first Systems Guidance.

3. Understand the lives of children and young people.  

In our next survey of young people, we’ll build on our research by asking more about the effects of weapons on their lives, including why they carry weapons and the impacts of seeing them on social media.

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