Targeting family risk factors such as poor child-rearing, poor supervision, or inconsistent or harsh discipline as contributing to criminal activity, this chapter begins with the authors discussing the methodology used in assessing various family-based crime prevention programs. Presenting a series of tables detailing the various programs, the bulk of this chapter discusses home visitation, parent education plus day care, clinic-based parent training, school-based child training, home/community parent training, and multisystemic therapy family-based crime prevention programs. Assessing program effectiveness, the authors argue that the home visitation, parent education plus day care, school-based child training, and multisystemic therapy programs were highly effective in preventing child behavior problems, delinquency, and other related outcomes. The authors also found that the family-based crime prevention program category of home/community parent training was judged to be largely ineffective in preventing criminal activity. Of the six programming categories described in this chapter, the authors found that the clinic-based child training plus parenting training approach was judged to be promising. The authors conclude that further research is needed to help identify the active ingredients for successful and promising family-based crime prevention programs. Tables, references