William O. Douglas

“ That was a collateral attack on the administrative proceeding, successfully made even though no objection to the examiner was raised at the hearing.
The objection raised in the present case likewise was not made at the hearing; but it was made before review of the order had been completed. It would seem, therefore, that reversal of this administrative order would follow a fortiori from Wong Yang Sung's case.
No one knows how the commingling of police, prosecutor and judicial functions in one person may affect a particular decision. In some situations it might make no difference ”