I begin by introducing the main issues of the work, and inviting their
consideration; as enticement, I offer a sketch of their practical
importance, and of the philosophical challenge they present. And I
provide a preview of the work's organization and central argument. There
is something so obvious that it is easily-and often-overlooked: the
enforcing of criminal statutes is the most intrusive and coercive
exercise of domestic power by a state. Forcibly preventing people from
doing that which they wish to do, forcibly compelling people to do that
which they do not wish to do-and wielding force merely attempting to
compel or prevent-these state activities have extraordinarily serious
ramifications. Indeed, no state institutions are likely to have more
profound an impact on the lives of individual citizens than those of the
criminal justice system. I endorse Herbert Packer's assessment: The
criminal sanction is the law's ultimate threat. Being punished for a
crime is different from being regulated in the public interest, or being
forced to compensate another who has been injured by one's conduct, or
being treated for a disease. The sanction is at once l uniquely coercive
and, in the broadest sense, uniquely expensive. As a consequence, these
state activities are in special need of moral warrant. Given the great
potential for doing grave injustice, the power of the state embodied in
the criminal justice system ought not be exercised in the absence of a
complete and compelling moral justification.