Criminal Procedure: A Free Law School Casebook, by Ben Trachtenberg & Anne Gardner Alexander (2021)100% Free. Creative Commons licensed. Peer-reviewed. And backed by additional CALI resources. Simple to adopt or even modify. We make it easy to improve student access to legal education. CALI also offers a low cost print copy for approximately $20: This Casebook is designed for the “investigations” criminal procedure class commonly taught at American law schools. It focuses on the Fourth, Fifth, and Sixth Amendments to the Constitution of the United States. Fourth Amendment topics include definitions of “search” and “seizure,” probable cause, warrants, exceptions to the warrant requirement (e.g., plain view, consent, automobiles), stop & frisk, and arrests. Moving to interrogations, the book covers due process and the voluntariness requirement, the Miranda Rule, and the Massiah doctrine. Next the book covers the exclusionary rule, including doctrines about standing and exceptions. Other chapters cover the right to counsel (including ineffective assistance and self-representation), witness identifications, and—briefly—electronic surveillance and the “war on terror.”