The 2022 edition of American Criminal Procedure incorporates substantial changes in both caselaw and the law enforcement landscape while maintaining the editorial voice that has earned accolades from generations of students and professors. This 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 historical materials; more headnotes; full case treatment of important new Supreme Court cases; and scholarly commentary on such topics as electronic searches, the exclusionary rule, Miranda, and the intersections between race and criminal justice. The authors have made a concerted attempt to arrange the material in a way that facilitates organized analysis of criminal procedure questions without sacrificing nuance.