Every patrol officer and investigator needs to understand the tactical considerations of stopping and frisking a suspect and the legal constraints that should govern that power. Recent years have shown clearly the damage that can be done when police lack an understanding of the legal foundation for their activities. In this new edition of Stop and Frisk, the authors provide police officers with knowledge of applicable law as well as practical techniques to safely and legally carry out their crime suppression and investigative duties. This updated edition includes summaries of major cases and lessons learned when police and communities failed to fully understand the results of Terry v. Ohio.