The United States Navy and United States Marine Corps require that all arrested personnel be read the "rights of the accused" and must sign a form waiving those rights if they so desire; a verbal waiver is not sufficient. You have the right to talk to a lawyer for advice before we ask you any questions. The "voluntariness" test is implicated in any police interrogation—neither Miranda "custody" or Massiah "commencement of formal criminal proceedings" is a necessary conditions (state action is required). The statement cannot be used as either substantive evidence of guilt or to impeach the defendant's testimony. Notably, the Miranda rights do not have to be read in any particular order, and they do not have to precisely match the language of the Miranda case as long as they are adequately and fully conveyed (California v. Prysock, 453 U.S. 355 (1981)).  If the defendant does reinitiate contact, a valid waiver must be obtained before interrogation may resume. For example, suppose the police continue with a custodial interrogation after the suspect has asserted his right to silence. Assuming that a Miranda violation occurred—the six factors are present and no exception applies—the statement will be subject to suppression under the Miranda exclusionary rule.  Therefore, the exclusionary rule exceptions, attenuation, independent source and inevitable discovery, do not come into play, and derivative evidence would be fully admissible. that the suspect voluntarily waived those rights or that the circumstances fit an exception to the, "Do you understand each of these rights?  The specific language used in the warning varies between jurisdictions, but the warning is deemed adequate as long as the defendant's rights are properly disclosed such that any waiver of those rights by the defendant is knowing, voluntary, and intelligent.  The public safety exception applies where circumstances present a clear and present danger to the public's safety and the officers have reason to believe that the suspect has information that can end the emergency.. " Thus, the jurisprudential rule of Miranda must yield in "a situation where concern for public safety must be paramount to adherence to the literal language of the prophylactic rules enunciated in Miranda.
Anything you say can and will be used against you in a court of law.  The right does not extend to uncharged offenses if factually related to the charged crime.. The motion must be supported by affidavits or other documentary evidence.