This textbook is a valuable resource for students and practitioners of criminal procedure. It covers the investigation phase of criminal cases, providing a comprehensive guide to the legal and practical aspects of the process. The book is authored by Nacy J. King, Orin S. Kerr, and Eve Brensike Primus, and is published by Wolters Kluwer. The 16th edition, published in 2024, is an excellent addition to any collection of textbooks on criminal procedure.