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The US Supreme Court has demanded that law guardians must warn detainees orally, before the questioning, about that they can keep silence and everything said can be used against them on the court and that they have right to an attorney.

The US Supreme Court has demanded that law enforcement officers must verbally warn detainees before their being interrogated that they can remain silent, and that everything they say can become evidence in a trial against them and that they have the right to an attorney.