"Many crime prevention programs work. Others don't. Most programs have not yet been evaluated with enough scientific evidence to draw conclusions. Enough evidence is available, however, to create provisional lists of what works, what doesn't, and what's promising. Those lists will grow more quickly if the Nation invests more resources in scientific evaluations to hold all crime prevention programs accountable for their results. These are the major conclusions of a 1997 report to Congress, which was based on a systematic review of more than 500 scientific evaluations of crime prevention practices. This Research in Brief summarizes the research methods and conclusions found in that report. In 1996, a Federal law required the U.S. Attorney General to provide Congress with an independent review of the effectiveness of State and local crime prevention assistance programs funded by the U.S. Department of Justice, 'with special emphasis on factors that relate to juvenile crime and the effect of these programs on youth violence.' The law required that the review 'employ rigorous and scientifically recognized standards and methodologies.'"
National Institute of Justice Research in Brief NCJ 171676
National Criminal Justice Reference Service: http://www.ncjrs.gov/