How can a system of criminal punishment be justified? In particular can
it be justified if the moral demand that we respect each other as
autonomous moral agents is taken seriously? Traditional attempts to
justify punishment as a deterrent or as retribution fail, but Duff
suggests that punishment can be understood as a communicative attempt to
bring a wrong-doer to repent her crime. This account is supported by
discussions of moral blame, of penance, of the nature of the law's
demands, and of the proper meaning and purpose of the criminal process
of trial and verdict: it deals both with the ideals that should inform a
system of criminal law and the extent to which those ideals are
actualised in existing institutions and practices. The conclusion is
pessimistic: punishment cannot be justified within our legal system; and
this gap between the ideal and the actual presents us with serious moral
dilemmas.