Can the police tell me if someone has been arrested?
The police are not usually allowed to inform anyone of the fact that a person has been detained without their express permission. When someone is arrested and brought to a police station, providing they are able to understand, they will be asked if they wish to have someone informed of their arrest.
What is the police saying when being arrested?
The typical warning states: You have the right to remain silent and refuse to answer questions. Anything you say may be used against you in a court of law. You have the right to consult an attorney before speaking to the police and to have an attorney present during questioning now or in the future.
Can the police handcuff a minor?
Yes, they can handcuff a minor, especially if they are over 16, since they are then treated as an adult in the criminal justice system. However, they can also handcuff a minor under 16 too. That's how they arrest someone.