Whatever the real reason, it is always likely to have something to do with fear. Even if they don't admit it, your brother, sister or other family member will be frightened and continuously looking over their shoulder. They'll be waiting for the police to stop and search them, or to be confronted by others, and in the end will be grateful for a ‘way out’ of that lifestyle.

What can you do?

• You might think talking to them will make them angry or put you in a difficult position, but you should try.
• If you don't think you can talk to them, you should talk to another responsible adult you know you can trust - perhaps a teacher or your Safer Schools Officer. They will know what to do.
• You can also speak to a professional in confidence. Get in touch with ChildLine for example on 0800 1111.
• The most important thing is that you don't just let it go - the longer they are involved with dangerous weapons the more likely someone is going to get seriously hurt or worse.

If you think the situation is getting really bad, perhaps you feel you need to report it, even if you know your friend will get into trouble. It's better they get into trouble than get seriously injured or even killed:

• You should speak to your Safer Schools Officer or Safer Neighbourhoods Team. If it's an emergency call 999. Find the best way to contact us here.
• If you feel unable to talk to the police, you can contact the Crimestoppers charity anonymously on 0800 555 111. (You don't have to give your name and your call will not be traced).
• Or for more information visit the ‘Reporting crime’ section on the Metropolitan Police website or the ‘How to contact us’ page on this site.