If you've been asked to be a witness and know something important, then check out this website. It tells you what you need to know and will answer some of your questions including:

• Being a witness
• Going to court
• Giving evidence
• Who can help you

You will either be going to a Criminal Court Case or a Children's Hearing Court Case. They are a little bit different but don't worry – we'll say when the information you need is different.