This article draws on the results of multi-method research studying the discourse of Belgian sentencing judges and report writers in relation to the use and evaluation of social reports. To understand the Belgian context, the legal framework and its underlying assumptions, as well as the institutional and cultural background to the use and evaluation of social reports, are explained. Social reports focus on the social background of the offender. Their production is embedded in a rehabilitative framework of supervision and guidance which prioritizes community-based sanctions, but which does not fit very well with judges’ neo-classical approach to sentencing. Our analysis suggests that the relatively marginal use of social reports in sentencing is an illustration of judges’ professional ownership of ‘their’ decision, and adherence to their own penal culture. Judges base their decision making on an official legal dossier which contains many different ‘voices’, both judicial and non-judicial. Compared to other documents, such as ‘moral’ reports by the police for example, social narratives are accorded less authority. As for the international penological debate on changing penality, we see little evidence of actuarial risk-based practices in the sentencing phase. Social reports are still requested and constructed within an individualizing needs-based approach. On the other hand, although the Belgian picture is changing and heterogeneous, we can see that new public management techniques are beginning to find their way into the Belgian criminal justice system, paving the way for a more managerial approach to the implementation of community-based sanctions.