Summary

Portrait of Harold Hitz Burton Harold Hitz Burton Delli Paoli v. United States — Opinion of the Court

Unless we proceed on the basis that the jury will follow the court's instructions where those instructions are clear and the circumstances are such that the jury can reasonably be expected to follow them, the jury system makes little sense. Based on faith that the jury will endeavor to follow the court's instructions, our system of jury trial has produced one of the most valuable and practical mechanisms in human experience for dispensing substantial justice.
Source: Wikisource

Portrait of Harold Hitz Burton Harold Hitz Burton Delli Paoli v. United States — Opinion of the Court

But where the conspirator's statement is so damning to another against whom it is inadmissible, as is true in this case, the difficulty of introducing it against the declarant without inevitable harm to a co-conspirator, the petitioner in this case, is no justification for causing such harm. The Government should not have the windfall of having the jury be influenced by evidence against a defendant which, as a matter of law, they should not consider but which they cannot put out of their minds.
Source: Wikisource

Portrait of Harold Hitz Burton Harold Hitz Burton Delli Paoli v. United States — Opinion of the Court

It is no answer to suggest that here the petitioner-defendant's guilt is amply demonstrated by the uninfected testimony against him. That is the best of reasons for trying him freed from the inevitable unfairness of being affected by testimony not admissible against him. In any event, it is not for an appellate tribunal to know how the jury's mind would have operated if powerfully improper evidence had not in effect been put in the scale against petitioner.
Source: Wikisource

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