The following excerpt is from United States v. Hernandez, Criminal Case No. 18-CR-1888-L (S.D. Cal. 2018):
Miranda warnings are not required for routine booking questions, including biographical information necessary for booking. See Pennsylvania v. Muniz, 496 U.S. 582, 601 (1990). Routine booking questions do not include questions that are designed to elicit incriminatory admissions. Id. at 602, n 14. The purpose of routine booking questions is to "secure biographical date necessary to complete booking or pretrial services." United States v. Williams, 842 F.3d 1143, 1153 (9th Cir 2016).
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