The justice model is retrospective in focusing on present criminality and is proportional in matching sanctions to the crimes committed. The goal is to correct the harms done by offenders rather than to correct offenders themselves. A justice model for probation would make little sense unless the model were more widely applied in the criminal justice system. Probation can fit well with other elements of the system, however, when the system's goals are justice and retribution. In a justice model, probation is likely to be viewed as a public service occupation rather than as a human services occupation. However, probation operations would vary to reflect the needs, capabilities, and experiences of local communities. The probation officer's role would be demanding and frustrating, due to the need to mediate the divergent interests of the victim, the offender, and the public. However, it could also be an extremely important and rewarding one. Offender services would be voluntary. One data set collected in 1979 indicates that probation officers may be receptive to reforming probation according to the justice model. However, many questions and obstacles remain. Data tables, notes, and a list of 104 references are supplied.