Being arrested: your rights
Complaining about your treatment by the police
Contact the police force you want to complain about or call 101 if you’re unhappy about how the police have treated you.
If you’re complaining about the treatment of a child under 18, you can also contact the Children’s Commissioner for England or the Children’s Commissioner for Wales.
You can also ask your local Citizens Advice for advice.
Police forces must refer certain types of complaints to the Independent Office for Police Conduct (IOPC).