The first monograph examines the provisions of pretrial dangerousness laws in 32 States and the District of Columbia. It considers the ways in which these laws define dangerousness, the types of restrictions they permit on the pretrial release of defendants so defined, and the procedural steps required before restrictions can be imposed. The next three monographs examine the perspectives of various groups on the implementation of these laws and related issues. A summary of nationwide pretrial danger issues in the media over a 2.5-year period provides a barometer of public opinion on these issues. The perceptions, expectations, and legislative history surrounding 10 danger laws are examined, and factors associated with implementation are identified. Findings are presented of 50 indepth interviews with criminal justice practitioners to elucidate the impact of the laws. The final monograph presents an analysis of the pretrial processing and release or detention of defendants charged with offenses often specified as indicative of dangerousness. Analysis involves cases in Milwaukee; Memphis, Tenn.; and Tucson and Phoenix, Ariz. Tables.