Department of Justice (DOJ) and federal judiciary officials reported considering numerous factors when using alternatives to incarceration at or before an offender's sentencing, but DOJ does not reliably track the use of some alternatives. A variety of alternatives can be used for offenders at or before sentencing, such as referral to state and local prosecutors, pretrial release, and probation. Other such alternatives include pretrial diversion programs which divert certain offenders from the traditional criminal justice process into a program of supervision and services or into court-involved pretrial diversion practices, such as drug courts, that provide offenders an opportunity to avoid incarceration if they satisfy program requirements. DOJ and judiciary officials most commonly reported considering the presence of violence and the offender's role in the crime when determining use of an alternative at or before sentencing. Based on DOJ and judiciary data on referrals to other jurisdictions, pretrial release, and alternatives at sentencing, the overall use of such alternatives across districts was largely consistent during the periods for which data were available from fiscal years 2009 to 2015. However, DOJ data on the use of pretrial diversion is unreliable because DOJ's database does not distinguish between the types of pretrial diversions. Further, when and whether the use of the pretrial diversion is recorded into the database varies across DOJ staff responsible for entering the data. By revising its system to track the different types of pretrial diversion programs, and issuing guidance as to when staff are to enter their use into its database, DOJ would have more reliable and complete data.DOJ's Bureau of Prisons (BOP) considers statutory requirements and risk levels when placing inmates into incarceration alternatives such as residential reentry centers (RRCs, also known as halfway houses) and home confinement, and has increased its use of alternatives, particularly home confinement, in the past seven years. In addition to the basic eligibility requirements, BOP evaluates inmates' needs for reentering society, risk for recidivism, and risks to the community if placed in RRCs or home confinement. For low-risk and low-need inmates, home confinement is the preferred alternative according to BOP and BOP increased its use by 67 percent for minimum security inmates and 58 percent for low security inmates from fiscal years 2009 through 2015. Relative to home confinement, use of RRCs grew at a slower pace for low security inmates and declined for minimum security inmates.