Let the police know what you've seen. Don't assume others will come forward. Many crucial witnesses walk away thinking someone else will report it.
Stay alert and safe.
Don’t physically intervene – you could get hurt yourself.
If it is safe to do so, take a photograph or video on your mobile phone. Remember, however, that the police are likely to need your phone as evidence.
Record details of times, number plates, descriptions and so on. If you don't have a pen with you, leave a voicemail message on your mobile phone or write a draft text message. As soon as you can find a pen and paper, write down the information in as much detail as possible.
If you want to stay anonymous, call Crimestoppers on 0800 555111.
Internet safety tips:Here are some useful tips for keeping safe on the Internet:
The Internet provides endless opportunities to meet people from all over the world. You must however remember to use common sense. It is easy to get swept-up into a fantasy world, but reality requires us to use caution.
Do not give out personal details, photographs, or any other information that could be used to identify you, your family, or where you live.
Do not take other people at face value - they may not be what they seem.
Never arrange to meet someone you've only ever previously met on the Internet, without telling a friend and giving them as much detail as possible about the person that you're meeting and where.
Do not open an attachment or download a file unless you know and trust the person who has sent it.
Never respond directly to anything you find disturbing when using the Internet or email. Log off, and report it.