Publisher Summary This chapter presents several case studies related to interrogations and confessions. These cases include Arizona versus Fulminante, Kaupp versus Texas, Miranda versus Arizona, and Berkemer versus McCarty. In any criminal prosecution brought by the United States or by the District of Columbia, a confession, as defined in subsection (e), shall be admissible in evidence if it is voluntarily given. The modern practice of in-custody interrogation is psychological rather than physical oriented. Thus, the major qualities an interrogator should possess are patience and perseverance.