1. If you make anything illegal, you can get into trouble with the police.
2. If the police believe you have done something wrong, they will question you.
3. If they know for sure that you did something, you will be charged with the crime.
4. The police may know the person responsible, but it can be hard to prove it in court.
5. Defendants have to prove that they are not guilty.
6. Before they decide, the jury have to listen to all the witnesses.
7. Ar the end of the trial, they decide if the person is innocent or not.