An in-depth study of the investigatory stage of the criminal process. Focuses on the power of the courts to shape criminal procedure and their capacity to control police investigatory practices, such as arrest, search and seizure, interrogation, and identification through the fourth, fifth, sixth, and fourteenth amendments. Discusses the role of counsel in this process and explores competing theories of criminal procedure and related systems of social control, such as the juvenile justice system and civil commitment of the mentally ill.