Book excerpt: Focusing on the investigation phase of criminal procedure, Criminal Procedure: Investigation combines Laurie L. Levenson’s first-hand experience in the criminal justice system with Erwin Chemerinsky’s student-friendly writing style. The Third Edition examines the impact of a host of recent developments in the courts and legislature on the process investigating crime. It eschews reliance on rhetorical questions and law review excerpts in favor of comprehensive exploration of black letter law and trendsetting policy issues. The book utilizes a chronological approach that guides students through criminal procedure doctrine from rules governing law enforcement investigation to matters related to habeas corpus relief. In addition to presenting the perspectives from various stakeholders, the authors take care to provide students with useful, practice-oriented materials. Criminal Procedure: Investigation not only employs a systemic approach that takes students through issues from policy to application of legal doctrine but also introduces issues at the forefront of modern criminal procedure debates. Key Features: Straightforward writing style and clear, dynamic text that is uncluttered with law review excerpts and features thoughtfully edited principal and minor cases. Intuitive chronological presentation of topics. Systematic and cohesive exploration of policy on every issue, before moving on to the specifics of doctrine. Practice-oriented features and discussion of important, modern criminal procedure issues. Approachable organization based on common progression through criminal justice system. Straight writing style that relies on cases and author essays rather than law review excerpts and strict Socratic rhetoric questions. Practice-oriented features, discussion of modern policy issues, useful example documents for practitioners. Useful examples for future and current criminal law practitioners.