## Facts

- Wisconsin law authorized the State Examining Board to regulate physicians, including investigating misconduct and temporarily suspending medical licenses.
- The Board notified Duane Larkin, a licensed physician, that it would conduct a closed investigative hearing regarding alleged professional misconduct, including allegations of illegal abortions.
- After taking testimony at the investigative hearing, the Board noticed a subsequent “contested hearing” to decide whether to temporarily suspend Larkin’s license.
- Larkin sued Board members in federal court to enjoin the contested hearing, arguing that due process was denied because the same body that investigated him would also adjudicate and impose discipline.
- The Board did not hold the contested hearing while the injunction was pending and later conducted a further investigative session, issuing findings and concluding there was probable cause to believe criminal laws had been violated.

## Issues

1. Whether due process is violated when a state licensing board both investigates alleged misconduct and later adjudicates discipline arising from the same matter.
2. Whether the district court improperly issued broad relief by treating the statutory scheme as unconstitutional and restraining its enforcement beyond what was necessary.

## Decision

- The Supreme Court unanimously reversed.
- The Court held that combining investigative and adjudicative functions within a single agency does not, without more, violate due process.
- The Court found no showing on this record that the probability of actual bias was constitutionally intolerable.
- The Court concluded the lower court erred by issuing unnecessarily broad relief against the statute’s application beyond the specific dispute.
- The case was remanded for further proceedings consistent with the Court’s ruling.

## Legal Principles

- Due process generally permits an administrative agency to investigate, make a preliminary determination (including probable cause), and later adjudicate the merits in the same matter.
- Adjudicators are presumed to act with honesty and integrity; disqualification requires more than prior exposure to evidence or prior participation in investigative steps.
- A structural due process claim requires a showing that the probability of actual bias is too high to be constitutionally tolerable (e.g., personal animus, financial interest, or comparable indicia of prejudgment).
- Federal courts should avoid unnecessarily broad facial invalidation and sweeping injunctions when narrower relief is sufficient to address the asserted constitutional injury.

## Conclusion

The Court held that a state medical board’s combined investigative and adjudicative roles do not, standing alone, deny due process, and it rejected broad injunctive relief absent a demonstrated, constitutionally intolerable risk of actual bias.


Withrow v. Larkin, 421 U.S. 35 (1975)