Summary

William J. Brennan, Jr. Jencks v. United States — Opinion of the Court

The impeachment of that testimony was singularly important to the petitioner. The value of the reports for impeachment purposes was highlighted by the admissions of both witnesses that they could not remember what reports were oral and what written, and by Matusow's admission: 'I don't recall what I put in my reports two or three years ago, written or oral, I don't know what they were.'
Every experienced trial judge and trial lawyer knows the value for impeaching purposes of statements of the witness recording the events before time dulls treacherous memory.
Source: Wikisource

William J. Brennan, Jr. Jencks v. United States — Opinion of the Court

After quoting dictionary definitions employing synonymous words, the trial court merely said: 'Affiliation * * * means something less than membership but more than sympathy. Affiliation with the Communist Party may be proved by either circumstantial or direct evidence, or both.' This instruction allowed the jury to convict petitioner on the basis of acts of intermittent cooperation.
Source: Wikisource

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