Withrow v. Larkin, 421 U.S. 35 (1975)
Withrow v. Larkin is a foundational Supreme Court decision on procedural due process in the administrative state, particularly addressing whether a single agency may both investigate and adjudicate alleged misconduct.
Does the Due Process Clause prohibit an administrative agency from adjudicating a case after it has investigated the same matter and made preliminary findings, on the ground that combining investigative and adjudicative functions creates an unconstitutional risk of bias?
Absent a showing that, under a realistic appraisal of psychological tendencies and human weakness, the probability of actual bias on the part of the decisionmaker is too high to be constitutionally tolerable, the combination of investigative and adjudicative functions within a single administrative agency does not violate due process. There is a presumption of honesty and integrity in those serving as adjudicators; prior involvement in investigation or making preliminary determinations such as probable cause is not, standing alone, sufficient to disqualify an agency or its members.
No. The Supreme Court reversed the injunction, holding that the mere combination of investigative and adjudicative functions in an administrative agency does not, without more, violate the Due Process Clause. Larkin failed to demonstrate special facts establishing a constitutionally intolerable risk of bias.
Withrow sets the baseline rule for structural due process attacks on administrative adjudication: combining investigative and adjudicative functions is constitutionally permissible absent special facts showing an intolerably high risk of bias. The case provides a framework for evaluating impartiality claims against professional licensing boards, securities and competition agencies, and other regulators. It also helps students distinguish between routine agency practice (which is acceptable) and the kinds of interests or roles that require recusal or structural separation (pecuniary interests, personal embroilment, or serving as both accuser and judge in the same matter). In exams and practice, Withrow is often paired with Tumey, Ward, and Murchison to map the spectrum of due process impartiality.