This pioneering casebook presents a thorough exploration of the rapidly evolving and complex area of marijuana law. Current through the end of 2018, this casebook explains marijuana law from all perspectives, including federal, state, local, and international law. Also treated in depth are the fascinating civil, criminal and constitutional issues emerging from current marijuana law, as well as important issues of federalism, business and tax law, and professional responsibility. Significant and recent cases are presented in edited and readable form, as well as the legislation, regulations, and public policy that govern marijuana cultivation, consumption, and supply. Notes, questions, and problems in each chapter enhance understanding of the materials.