This paper presents the results of two case-sentencing surveys and com
pares the demand for punishment (as expressed by the public) to its su
pply (as measured by the sentencing preferences of court actors). Find
ings show criminal court actors to hold significantly less punitive vi
ews than the public. This ''underpunishing bias'' cannot be explained
away in terms of differential assessments of perceived crime seriousne
ss, the socio-demographic background of respondents, or the presumed i
rrationality of public opinon. The crucial factors are to be found els
ewhere: both sets of respondents differ significantly in the amount of
responsibility they attribute to offenders; they also differ in how c
ertain they are of achieving their normative goals. Relying on cogniti
ve attribution research as well as on equity theory, the discrepancy i
n sentencing preferences between criminal court actors and public opin
ion is shown to be intrinsically linked to their cognitive status as a
ctors and observers of just deserts.