Terrorism: Commentary on Security Documents is a series that provides primary source documents and expert commentary on various topics in the worldwide effort to combat terrorism. Among the documents collected are transcripts of Congressional testimony, reports by such federal government bodies as the Congressional Research Service (CRS) and the Government Accountability Office (GAO), United Nations Security Council resolutions, reports and investigations by the United Nations Secretary-General and other dedicated UN bodies, and case law from the U.S. and around the globe covering issues related to terrorism. Most volumes carry a single theme, and inside each volume the documents appear within topic-based categories. The series also includes a subject index and other indices that guide the user through this complex area of the law. Volume 128, Detention Under International Law: Liberty and Permissible Detention, is the first in a three-volume arc that looks at detention under international law. This volume examines the literal deprivation of a person's liberty, and the ways in which international and regional human rights instruments and courts have permitted detention under international law. Professor Kristen Boon explores how the individual's right to liberty and security has been set out in universal and regional treaties and charters, and contrasts lawful detention and the treatment of administrative and preventative detention with unlawful arbitrary detention. Professor Boon illustrates her commentary by organizing treaties, reports by UN agencies and non-governmental organizations, judgments in regional international human rights courts, and through comments, adjudications, and reports from UN human rights treaty bodies.