If you’re arrested the police must:
identify themselves as the police
tell you that you’re being arrested
tell you what crime they think you’ve committed
explain why it’s necessary to arrest you
explain to you that you’re not free to leave
If you’re under 18 the police should only arrest you at school if it’s unavoidable, and they must inform your headteacher.
The police must also contact your parents, guardian or carer as soon as possible after your arrival at the police station.