The Institute's mandate is to marry science to criminal justice problem solving and policy development. Specifically, the Omnibus Crime Control and Safe Streets Act of 1968 directs NIJ to: 1) Conduct research about the nature and impact of crime and juvenile offending; 2) Develop new technologies to reduce crime and improve criminal justice operations; 3) Evaluate the effectiveness of criminal justice programs and identify promising new programs; 4) Test innovative concepts and model programs in the field; 5) Assist policymakers, program partners, and justice agencies; 6) Disseminate knowledge to many audiences. This report summarizes the National Institute of Justice's operations, achievements, and overall role in 2000. It reports on key research, evaluation, and technology activities that achieve the Institute's strategic objectives and describes outreach and dissemination efforts. Three appendixes provide information on financial resources, list the awards the Institute made in fiscal year 2000, and list the materials published in fiscal year 2000. Presented first are accomplishments pertaining to the challenge of rethinking justice and the processes that create just communities, followed by the other four challenge areas: creating the tools and technologies that meet the needs of practitioners, understanding the nexus between crime and its social context, breaking the cycle of crime by testing researched-based interventions, and expanding horizons through interdisciplinary and international perspectives. The final chapter discusses NIJ's information-sharing efforts. Appendixes present fiscal year 2000 financial data, a table of organization, and lists of grant awards and publications.