This report contains a number of the papers submitted to the President's Commission on Law Enforcement and Administration of Justice, by outside consultants. Chapter Eight of that commission's report, "The Challenge of Crime in a Free Society," is reprinted at the beginning of this report, with the addition of annotations to indicate source materials considered. But this volume does not in any sense embody a comprehensive treatment of the complex and important problems of drug abuse. Limitation of resources has led this commission to limit the scope and depth of its work in this area. Among the topics discussed in this report are: (1) the drugs and their reputation, (2) enforcement, (3) drug abuse and crime, (4) penalties, (5) marihuana, (6) treatment, (7) civil commitment, (8) medical practice and addiction, and (9) education. Six appendix sections are presented covering such topics as dangerous drugs, narcotics, drug legislation, treatment of drug addiction, and civil commitment of narcotic addicts. (Author/BW)