The term "evidence-based" is used widely in describing effective interventions in fields ranging from medicine to corrections. But what is the definition of and the guiding principles that indicate whether individuals and agencies are engaging in proper decision-making for the treatment and supervision of their clients? The Ohio Department of Rehabilitation and Correction, Ohio Institute on Correctional Best Practices, Institute for Excellence in Justice has provided a clear and concise best practices tool kit for community-based corrections professionals that answers these and other questions. This report also highlights the polices and practices of jurisdictions that have adopted an evidence-based model for operations and supervision. Report here.