This article offers a justification for a set of principles that const
itute the ethical underpinnings of forensic psychiatry. Like professio
nal ethics in general, the principles are based on the particular soci
etal functions performed by forensic psychiatrists and result in the i
ntensification of obligations to promote certain important moral value
s. For forensic psychiatrists, the primary value of their work is to a
dvance the interests of justice. The two principles on which that effo
rt rests are truth-telling and respect for persons. In the same manner
as other physicians who perform functions outside of the usual clinic
al context (e.g., clinical researchers), forensic psychiatrists cannot
simply rely on general medical ethics, embedded as they are in the do
ctor-patient relationship-which is absent in the forensic setting. Ind
eed, efforts to retain some residuum of that relationship and its asso
ciated ethical principles are likely to create confusion in the minds
of both forensic psychiatrists and their evaluees and to heighten the
problems of double agency. A virtue of this approach is the clear dist
inction it offers between clinical and forensic roles.