This new edition of the classic casebook contains detailed and authoritative commentary, extensive discussion of practical problems, highlighted treatment of selected recent lower-court cases, full consideration of Supreme Court cases, and questions that challenge the conceptions and analytical powers of law students. New features include the addition of more headnotes; full case treatment of important new Supreme Court cases; and consideration of how Bill of Rights protections have been affected and limited in the aftermath of 9/11. The new edition also includes additional scholarly commentary on such topics as the exclusionary rule, Miranda, and jury nullification. The authors have made a concerted attempt to make the book as lean and as user-friendly as possible, without sacrificing content that will challenge both the student and the professor.