Book excerpt: Pretrial services (PS) programs can be valuable resources for making significant improvements in the criminal justice system because they are used in the early stages of the criminal case process. This report provides a review of issues and practices in the PS field. It describes how pretrial programs operate, discusses key policy issues, and outlines issues and challenges for the future. It pays particular attention to how PS programs obtain and convey information relevant to the pretrial release/detention decision. Describes how PS agencies, the court, and other criminal justice system agencies can work together to minimize the risks of nonappearance and pretrial crime.