To arrest you the police need reasonable grounds to suspect you are involved in a crime for which your arrest is necessary.
The police have powers to arrest you anywhere and at any time, including on the street, at home or at work.
The police arrest procedure
identify themselves as the police
tell you that you are being arrested
tell you what crime they think you have committed
explain why it is necessary to arrest you
explain to you that you are not free to leave
If you are under 18 the police should only arrest you at school if it is 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.
Police powers to use reasonable force
If you try to escape or become violent, the police can use ‘reasonable force’, for example holding you down so you cannot run off.
You can also be handcuffed.
The police have powers to search you when you are arrested.
For further information on Police Powers of Arrest - Your Rights can be found on GOV.UK.