Some of the most pressing questions in immigration law and policy today concern the problem of immigration controls. How are immigration laws administered, and how are they enforced against those who enter and remain in a receiving country without legal permission? Comparing the United States and Germany, two of the four extended essays in this volume concern enforcement; the other two address techniques for managing high-volume asylum systems in both countries.

Hiroshi Motomura has been a professor of law at the University of Colorado School of Law in Boulder since 1982. Before that, he was an attorney in Washington, D.C., with a practice that included immigration law matters. He writes and lectures extensively on immigration law and policy topics, with an emphasis on constitutional issues. Publications include the law school casebook Immigration: Policy and Process (with T. Alexander Aleinikoff and David A. Martin; 3d ed. 1995) and the articles "The Curious Evolution of Immigration Law: Procedural Surrogates for Substantive Constitutional Rights" (Columbia Law Review 1992) and "Immigration Law after a Century of Plenary Power: Phantom Constitutional Norms and Statutory Interpretation" (The Yale Law Journal 1990).

Introduction
Kay Hailbronner and Hiroshi Motomura

Chapter 1. The Obstacles to Effective Internal Enforcement of the Immigration Laws in the United States
David A. Martin

Chapter 2. Internal Controls and Actual Removals of Deportable Aliens: the Current Legal Situation in the Federal Republic of Germany
Hans-Joachim Cremer

Chapter 3. The New Techniques for Managing High-Volume Asylum Systems
Stephen Legomsky

Chapter 4. New Techniques for Rendering Asylum Manageable
Kay Hailbronner

Conclusion: Immigration Admissions and Immigration Controls
Kay Hailbronner, David A. Martin and Hiroshi Motomura

Notes on Contributors
Bibliography
Index