Miranda rule

The requirement to inform a person of his privilege against self-incrimination (right to remain silent) and his right to the presence andadvice of a retained or appointed attorney before any interrogation by lawenforcement authorities. Prior to any questioning, the person must also bewarned that any statement he does make may be used as evidence against him.Statements and evidence obtained in violation of this rule, unless these rightshave been knowingly waived (and the evidence voluntarily provided), are notadmissible in the defendant's criminal trial and are grounds for federalconstitutional challenge to any conviction obtained thereby.