This guide focuses on offenders; specifically, people who have already been convicted of crimes and who are under community supervision ordered by courts or correctional authorities. Although many of these individuals are not actively engaged in offending, the past behavior of people on probation and parole suggests that they have a heightened risk of committing a crime. Consequently, reducing the risks of offending for people on probation and parole can be an ingredient in sustainable solutions to crime problems. This guide discusses how offenders are supervised by correctional agencies while on community release. These offenders can cause problems for police (e.g., recidivate and prompt calls for service), so understanding community supervision can be extremely useful for solving such problems. This response guide provides a review of the most effective practices for monitoring offenders on conditional release. For police and their partners, this will help them better understand community supervision, and appreciate the benefits and potential hurdles in their collaborations with community corrections agencies. For probation and parole authorities, this guide may help them develop an understanding of the ways police officers can assist offender supervision and community reintegration.