This work provides a comprehensive introduction to the phenomenon of state expansion of federally guaranteed constitutional liberties. In a series of constitutional provisions, reports and debates from state constitutional conventions, state and federal cases, litigation briefs, and scholarly articles drawn from the fields of law and political science, it traces the jurisprudential foundations for an independent state constitutional law. The author illustrates the range of liberty-expanding constitutional rulings by state courts, and sets out the key debates that presently engage judges and scholars alike in this controversial area of law. The first volume of this collection focuses on the early and enthusiastic reception of state courts to Justice Brennan's notion of a vigorous, independent, liberty-protective role for state constitutional law. The second volume examines the jurisprudential crisis in state constitutional law precipitated by state courts acceptance of Justice Brennan's challenge.