Right to silence in England and Wales
The Right to silence in England and Wales is the protection given to a person during criminal proceedings from adverse consequences of remaining silent. It is sometimes referred to as the privilege against self-incrimination. It is used on any occasion when it is considered the person being spoken to is under suspicion of having committed one or more criminal offences and consequently thus potentially being subject to criminal proceedings.
When you are arrested, you will hear this in England and Wales:
"You do not have to say anything. But it may harm your defence if you do not mention when questioned something which you later rely on in court. Anything you do say may be given in evidence."